Only played one that was $10k at a store. Was it one of the best guitars I've played? Yes. Is it worth 10k? Maybe $5k if we're pushing how much I can afford.
I highly doubt they hold their value on the used market, if very few guitars in general do.
They are exactly the same as cores, Artists, 10 tops etc and play the same, or worse, depending on how well its been looked after. You get to pick every part of it when ordering and of course some combinations of woods and finishes might make it play and sound better depending on your preference.
I did almost get one just before covid hit after getting a large PPI payment, but had a chance to play a load of really nice core/10t/artists etc in GAK Brighton first. I did note that although they look great they play only as well as everything else they produce.
As I'm not in a band atm, or making money from music etc I couldn't really justify the roughly 8k cost it would be for them to make a maple board Tremonti clone in satin. I brought a car instead lol