When I first read that a while back I thought it was insane. But my alt coin rig (4 rx 580s, 8gb)
 is pulling in .00064576 btc a day on nh. That's the equivalent of adding  8 T/Hs capacity to my ASICs. Now I see what you mean. I paid 269 for 2 and 313 for the other 2, so about 1200, and I just frankensteined them onto my existing gaming pc. Compared to a 6.5 or 9 T ASIC that's far cheaper and more profitable.

I don't think what you said is so crazy anymore.