GTX 970 more than the 1070, why?
I was just looking at switching my 970 out and out of curiosity checked the price it was at now. I bought it back in Jan. of 2016 for like 250 and the cheapest I can find it now was at 450-500. Why did it go up so much? I do know about the shortage of higher end GTX cards for Ether mining but why the 970, is it that good as mining one of the coins?