Excluding the latest generation gpu, i.e. the 4xxx that passionate gamers will buy at exorbitant prices, no miner will buy cards at the current time in the uncertainty of the date of transition of eth from pow to pos and perhaps the medium-power and not recent gpus will return as before at decent prices
You'd be surprised... Some people don't actually believe the ETH 2.0 date and are still buying cards. I'm personally waiting to see what intel brings to the table along with the 4XXX series. Might consider buying then, but I also think they will be scalped.
People like me are buying graphic cards not because we believe that ETH merge isn't going to happen, we keep buying because we believe that another coin will take ETH's place and become profitable like ETH, also there are many PoW algorithm coins apart from ETH that I can mine.