By that time there will be plenty of cheap used cards regardless of crypto as gamers who overpaid will look to cash in before the next gen cards hit. Remember those RTX 2080tis going for less than £400 when ampere was announced?ETH bomb is june 2022 at the very earliest now (keep an eye of EIP4345 updates). POS will be Feb, at the earliest. Heard all of this before with BTC and the difficulty increases.