GPUs are not going obsolete anytime soon. the nvidia p40/p100 launched in 2016, 10 years ago and is popular in the local space. My first set of GPUs were a bunch of P40s from 3 years ago for $150 a piece. They at one point went up all the way to $450, but price is now down to $200 range. I think I have gotten my value from those and I suspect I'll still have them crunching out tokens for at least 3 more years. They still beat 90% of cpu/memory inference combo.
My point being that no one should be buying expensive GPUs when you can pick up a few used ones to get started. But for the sake of discussion let's say you do get a blackwell pro 6000 that's now going for $10,000. I can assure you it will not be $150 10 years from now, with the falling price of dollar, demand for AI inference and hardware shortage, it might cost exactly the same 10 years from now...
