I hope to see a glut of used cards on the market. In the past I've always been able to buy decent used cards for <$100, but the prices have been crazy for the last few years.
I wonder if this is the end of an era for GPU based mining. It's been a long time. I remember buying an R9 270X in 2014 from a guy that was mining Bitcoin, but had switched to ASICs. When I picked it up he was telling me he didn't win enough blocks with the ASICs and was going to sell them too.
I always wonder if that guy played his cards right and became a Bitcoin millionaire. Lol.