In my mind, "pretty cheap" would be closer to $100. The most you may be able to find new for $300 would be a 1650 Super which used to retail for $160. Almost anything with more than 4GB of VRAM is $500+.
Like roaches, they will just scurry to other countries. Because greed.
After what happened to the Colonial Pipeline, some officials in government are waking up and are considering banning all crypto currencies in American banking that don't have full tracking from A->Z. No crypto currencies will be allowed with unregulated banking entities that cannot track who gets the money. What this means if places like coin base cannot track the transaction both ways, then coinbase will not be allowed access to bank clearing houses for monetary exchange of cyrptocoins<->money. This means an end to unregistered wallets which was one of the perks to hackers, terrorist, rogue nation states, and people looking to evade taxes.
A couple of Chinese province had already banned crypto a while ago due to power shortages and, as I have been saying for quite a while, it is only a matter of time before crypto bans go national. Though in China's case, it likely has a whole lot more to do with the CCP being a control freak than preventing more provinces from having crypto-induced blackouts.