Gulfstream stopped building the G650. That changed what a private jet is worth

A jet broker has a buyer with cash and a clear list of what he wants. A Gulfstream G650, built between 2016 and 2020, low hours, the right cabin layout. The order has been sitting open for weeks. Not because the buyer is picky. Because the airplane is almost impossible to find.At the start of 2026, you could count the G650s for sale anywhere in the world on one hand. About two were listed. There are more than 400 of them flying. That is the kind of shortage you almost never see with a late model jet built at this volume.Here is the interesting part. The jets are still selling. Around 35 of them changed hands in the past six months. Most of those deals were never advertised anywhere. A broker made a call, a price was agreed upon, and the airplane quietly switched owners. The ones you can actually see listed for sale are usually the leftovers, the overpriced ones, or the ones about to need an expensive inspection or worse.It helps to understand why this airplane, over any in the market, is the one everybody wants. The G650 is the jet that beat all the others at the things well-heeled travelers actually care about. It flies almost as fast as a passenger airliner and farther than nearly anything else in private aviation, far enough to go from New York to Hong Kong, or Singapore to the U.S., without stopping to refuel. The cabin is tall enough to stand up in and large enough to sleep up to ten people. The cabin altitude is lower than most competitors, so you land less wrung out after a long flight. When it arrived it set more than 100 speed records and won the industry's top engineering prize. Musk, Bezos, Oprah, the Saudi royals: when the people who can buy anything pick a jet, they pick this one. That is the reputation Gulfstream froze in place when it shut the line down.So why the shortage? The easy answer is because Gulfstream stopped making them. The last G650 came off the line in February 2025. There will never be another one. If you want this airplane, you have to convince someone who already owns one to let it go, and most owners do not want to.That makes this kind of an asset an outlier — it's practically liquid. You can sell it fast. Not stock-market fast, but for something worth $40 million, fast. A few months and it is cash. Or you can keep the jet and borrow against it, the same way you would borrow against a house. The difference is that this house can be in another country by this evening.Once an airplane behaves like that, the business of managing it changes. For years the companies that provided that service competed on the basic flying necessities: How many hours can you give me? How far does it go? Is the cabin nice? That part is now just expected, the way clean towels are expected at a hotel.But if a jet is going to hold its value like an investment, somebody has to treat it like one. Proper records need to be kept to prove trips were conducted for business. Somebody has to manage the legal setup that owns the plane on paper. Somebody has to keep the maintenance history clean so it sells for top dollar later. Somebody has to manage aircraft succession planning. That is the real work now, and it is worth real money. A management company that handles all of that complicated business becomes very hard to fire. The broker who knows who is secretly ready to sell, controls deals nobody else can see. The lawyers and accountants who built the structure don't leave — they're back every year for the tax filings, the compliance, the estate updates. The plane is the easy part. The structure around it is the business. What does this mean for you? It depends on where you sit.If you run a flight departmentDo not assume your own jets will hold value like the G650. They probably will not. That airplane is a one-off: the best in its class, and now permanently sold out. Your model may still be in production while your particular airplane slowly runs up total engine time and landings. Technology has a way of rendering it obsolete over time and there are plenty for sale. It will lose value the normal way.What does apply to you is the paperwork. The government has started taking a much harder look at whether business jets are really used for business. Owners write off the cost of a jet on their taxes, and the IRS wants proof the flights were not just family vacations. Smaller jets owned by smaller companies are an easy target, because those owners usually do not have a team of lawyers keeping the records straight. The flight department that keeps clean, honest, organized records is now far more valuable than the one that just keeps the plane ready to fly.If you fly the airplaneGood news and bad news.The good news: a pilot who understands the money side is hard to replace. If you can sit with the owner's accountant and explain how the trips break down, you are worth more than a pilot who only knows the cockpit. In a market starved for crews, that is leverage.The bad news: when a jet gets treated like an investment, owners start asking a cold question more often than not: is this thing still worth it? That question gets loudest when the founder dies and the family takes over. Heirs who see a money pit instead of a freedom machine sell the plane, and the whole flight department can be gone in a few months. The safest job is flying for a business that genuinely needs to fly, not for one rich person's lifestyle.If you are shopping for a smaller jetThis is where people get the wrong lesson from the G650. While there are some other outlier models across all classes that beat the depreciation mean, do not buy a midsize or light jet expecting it to hold value the same way. Typically the smaller the plane, the faster the depreciation. If a salesman tells you a midsize jet is a great investment that holds its value, that is your cue to walk away.What does carry over is the tax exposure. The same rules used to scrutinize a $60 million Gulfstream apply to an $8 million one, and you are actually more exposed, because you probably have less legal help. A reminder that you're purchasing the records as much as the plane. A cheap jet typically is accompanied by a giant maintenance bill. And it pays to buy a common, popular setup, because when you go to sell, the oddballs sit.The biggest question is whether you should own at all. If you only fly about 200 hours a year, owning a midsize jet costs roughly $1.5 to $2.5 million once you add everything up. Chartering the same amount of flying costs maybe $600,000 to $800,000, and you walk away clean with no airplane to sell later. For a lot of buyers, owning stopped making sense. Run that math before you sign, not after.The catchNone of this lasts forever. Gulfstream has newer, bigger jets rolling out now, the G700 and the G800. Every one of those that gets delivered chips away at the G650's price, and eventually enough buyers trade up and put their old one on the market. When enough of them do, the shortage eases, the jets sit longer, and the urgency fades.Here's a bet worth making. Before this year is out, the IRS will make an example of someone. The first big case from its crackdown on jet write-offs will land, the bill will be ugly, and overnight every owner who used to shrug off the paperwork will want the clean records they ignored. That is the moment this stops being a story about one rare airplane and becomes the way the whole business thinks.And the whole money game only works if the facts are real. The tax write-off only holds if the flights were really for business. The privacy only holds until a court demands answers. The resale price only holds if the maintenance was actually kept up. Every trick that creates an advantage is also a place the whole thing can fall apart.The broker's buyer will probably get his jet. A quiet call, an agreed price, an airplane that changes hands without ever showing up for sale. The interesting question is not who flies it next. It is who gets paid for everything wrapped around it.