With Asic miners in the picture, it was only a matter of time before GPU mining was a complete loss. Ebay is overflowing with used cards now and the prices aren't getting any higher. Sell before the block reward reduction comes or you may end up with a set of GPU paperweights or door-stoppers that used to be worth something. Best route to continue mining ETH would be to purchase a large solar system (20KW+ in panels) and asics. Chris B.