Joker, I am sure you have heard that Samsung has started making chips for ASIC mining. I have already heard rumors that they are going to combo these chips with there ram that is the best for mining Ethereum to make specific Ethereum ASIC miners. if this is true than the same thing that happened to Bitcoin years ago will soon happen to Ethereum and the used GPU market will get flooded. This will also make retail prices drop if they want to compete at all and not have there shelves filled with GPUS they can't move.