Which one of these three buyer types are you?

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“I want a G-Five-Fifty!”

Love it! Tell me more…

“Yeah, it’s the OG…Original Gulfstream, you know?”

“I get they made the GV (G-Five), IV, III, II and I before it. But the Five-Fifty had a long production run, over 600 units!” The G450 didn’t even break 400 units.”

“I love the way it looks with its long slender airframe. Reminds me of my wife - she’s a supermodel!”

OK!

You like the history. You like the large fleet. You like the ramp presence. I get it.

Now let’s discuss a few things that will actually help you.

Not all Five-Fifty (G550) buyers are created equal. You need an identity check. You likely fit into one of three boxes.

Before we dive into those, you need to understand the G550 market.

No better place for that than right here, right now, super-quick update, here we go.

14 currently for sale. 7 of these are deal pending. 24 units sold in 2026 to date.

Prices range from $10-35 mil with an average ask of $21 mil.

Savvy buyers know there’s a tonne of value left in this platform.

Compare that pricing to a newer G600 that’ll set you back ~$50 mil.

And for what? The G600’s 3-inch wider cabin?

The 7’4” wide G550 cabin looks pretty nice to me.

Not only is the G550 very comfortable, it will also get you to every destination the G600 can.

Now let’s get something straight… the guy buying a 20-year-old G550 for $15mil, is not thinking the same as the gal buying a 2021 model for $35.

So tell me this…What kind of G550 buyer are you?

A Value Hunter - early G550 (YOM 2003–2008).

A Pragmatist - mid-life G550 (YOM 2009–2013)

Or are you in the Almost-G600 Club (YOM 2014–2021)? - Looks like a G600 on Flightradar, feels like G550 on the balance sheet.

It’s clear from the above chart that no vintage is more popular than the other right now. Transaction numbers are pretty balanced across the whole fleet.

Each vintage has a following, but the buyers differ greatly.

To help you do a little introspection and decide what kind of buyer you are, here are your personas to consider…

The Value Hunter - early G550 buyer (YOM Vintage 2003–2008).

These buyers want all the long-range capability with as little acquisition cost as possible.

Nothing wrong with that, but beware, the 96 month inspection (every 8 years) is deep and costly. You’re talking $750-900k.

The third 96 month, after 24 yrs of service, is like your granny going in for a check-up.

They’re gonna find all the bits she wasn’t born with: the hip, the knee, the chewing gum she swallowed when she was 7… and then some. And they’ll find parts they need to replace 💯.

These inspections are risky. Not you-might-die-risky, but you may have to pay more than you budgeted for.

If you buy a 2003 G550, this inspection is coming due in 2027.

A 2008 model will have had the second 96 month completed in 2024. That’d be a safer buy.

With older models, an appropriate pre-purchase inspection is required, go as deep as you can negotiate if a large inspection is looming.

The positive thing about older aircraft, is that they’re cheap and they’re not depreciating like their younger bros. Previous owners have taken most of this hit.

Maybe you’re a Pragmatist? The mid-life G550 buyer (YOM 2009–2013)

Here you’re balancing acquisition cost and ownership risk. The chance of these aircraft needing a major repair is less but you pay for this in the acquisition cost.

Maybe try to pick up an early 2010... The second 96 month inspection will have just been done or in process.

But expect to have to negotiate hard. The seller has just taken on this inspection risk and will look for a premium.

Or are you in the Almost-G600 Club? An interesting space.

There was an overlap where the G550 and G600 were produced in parallel. 2019-2023.

In 2019 you weren’t able to order a new G550, as it was being phased out.

Now that the pre-owned G600 market has matured, you can buy either a 2021 G550 or a 2021 G600.

The G600 is not exactly the same as the G550 but it’s widely considered the replacement.

For this reason the bottom end the G600 market puts downward pricing pressure on top end of the G550 market.

Suddenly the price to join the Almost-G600 Club looks even more attractive.

Remember, young machines love depreciation. Depreciation that the true value-hunting early G550 buyers are avoiding.

With all G550 vintages, avionics upgrades, WiFi systems, paint and interior condition differ greatly. Some will have it all, others none.

Future Air Navigation System (FANS 1/A) required to fly the most efficient transatlantic routes will set you back $400k. Starlink internet $300k.

Paint $250k and an interior anywhere from $500k to a $1 mil depending on how expensive your taste is.

Alright, so now you’re ready for introspection.

Ask yourself…Who am I?

Sleep on it.

You’d like to think that newer-generation aircraft are more efficient. And they are…

The G500 and G600s are powered by Pratt & Whitney’s PW800 engine. This is a high bypass engine. A higher bypass ratio improves efficiency.

AIN have a cool video of this on youtube.

These engines have double-digit improvements in fuel burn over Rolls-Royce BR710 on the G550.

So that’s great, the G500/600 burn less fuel that the older G550 then?

Well kind of... Comfort in a bizjet doesn’t come free.

If you want a more spacious cabin, like that of the G500 and G600, you need to make a bigger airplane. If the airplane is bigger, this offsets some of the fuels savings.

The G500, the smaller variant of the two, does burn less fuel than the G550 but the larger G600 is the same if not more, depending on how you fly it.

Here’s a cost comparison of all three.

The ownership cost of the G500/G600 still works out cheaper than the G550 driven by maintenance savings.

But are these savings enough to justify the extra acquisition cost?

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Have a great weekend!

Cheers.

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