Yea as far has hobbies go, I feel like this is on the low end. I know people who collect watches and corvettes, that's way more expensive and functionally you can't really do anything special with them.
> The difference is watches and corvettes typically appreciate in value
Both of those things' value drops like a rock as soon as you buy them and, at least for cars, they don't all appreciate. Most don't. Even so, they appreciate at an incredible slow rate.
I can't speak for watches but I'd be surprised if it wasn't the same situation.
At least the gpus can create value after you buy them before they are worthless.
Only the oldest, most unique model years: nobody is buying (C4-C5-realistically C6) mid-90s or early 2000s Corvettes for more than what they paid for them, and they never will.
Corvettes don't appreciate in value, and high end data center hardware isn't dropping in value anymore. A100s are more than 2 dollars an hour, more than they cost in 2023.