I disagree, but we can agree to disagree.
There are still plenty of miners who will snatch up your GPUs at a reduced cost because they have cheap power or are willing to stick it out. And the gaming market is much larger than the mining market, and gamers are always on the lookout for a bargain GPU.
It's good to have your own opinion I have no argument with that. I am simply trying to paint a different viewpoint as most people new to mining did not live through the last boom bust cycle to see how things play out.
As far as your statement about still plenty of miners willing to buy GPUs, yes that is true because we haven't went bust yet. Even once mining profitability turns negative you are correct in predicting many people will try to tough it out for a month, maybe more thinking things will return to normal. It is when we start to grind on for months on end where you are either mining at an outright loss or at most making 20 cents/day off that 6 GPU rig that people will wake up and begin the exodus.
And if and when that day comes it will be just like a market crash in that once GPUs start selling off in bulk, the floodgates will open and people start undercutting each other to get out while the getting is good. Gamers will indeed have a field day, but they will mostly be looking at the now discounted retail cards as most of them are now wise to the used (but not used for mining; wink, wink) GPU market.