Looking at what's happening with RAM pricing and Crucial being shuttered, the doomer in me thinks they could just pull the same thing with every other PC component. It's not like some plucky band of upstarts can start 3D printing organic free-range FOSS processors, hard drives and motherboards in their garage- all of this shit comes out of a couple of giant plants in Asia. If porky strangles the supply, that's it. In the end all the average joe schmoe will be left with are cloud-based terminals that rely entirely on subscription services and that require strong identification to even use (and that will monitor and log every single fucking thing you do while drowning you in ads)
Wanna install Linux? Go ahead! What are you going to install it on though, your grandpa's old Pentium? 
Wanna ditch subscription services and sail the seas? Oops, it looks like hard drives cost 5,000 dollars and are only sold to enterprise customers. I guess you're not storing that media anywhere
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Not if they can avoid it. Selling stuff is usually necessary for a company that produces stuff. It's just that right now there are more valuable markets than the consumer market. Because this is a ludicrous bubble ai companies are willing to pay unreasonable prices.
But when this bubble pops apart from all the other financial damage, no one will be willing to pay the ridiculous markup on gpus.