My 1979 vintage steel is 63.5cm (25")
So when I went looking for a "modern" bike I asked around the LBS's at what they had to offer in that size.
To my surprise they recommended a 58cm frame size.
I decided I didn't like the idea of a smaller bike and so I purchased a used 61cm as a size experiment at an initial cost of $1100. Knowing I could likely flip the used 61cm for about what I paid.
Bike rode nice, so upgrades came next.
I like the 61cm but due to some knee pain issues I went for a bike fit. Best $300 I've spent on bike related stuff.
The bike fit proved to me that I'd be a lot better off on a 58cm. Turns out that frame geometry has changed over the years and 61cm in a modern frame is a bit big for me at 6'1"
I'm saving for my "dream" 58cm and very glad I made that size mistake with a used bike and didn't take the $$$ hit on a new one.
Had I gone directly to a bike fit, I'd be riding around now on a more suitable but still used 58cm for the interim.
I can't tell if $2500 is a size experiment or a dream bike for your wallet.
But I can tell you that buying new and selling due to an upgrade, size mistake, or you just can't live with that color, will result in a loss.
If I had to do it over, I'd pay for the bike fit, or at very least I would have rented a bike in the size I wanted.
Carbon bike rental around here is ~$100 for a 3 day weekend.
All the best
Barry