Everyone who mines gets money, but everyone is also paying for electricity, and not everyone has a profit after paying the electric bill. You can be more efficient with two cards in one PC, because the PC itself draws power not just the graphics cards. You can also undervolt, which also reduces power consumption. As a gamer you might not want a second card and you might not want to mess around with undervolting, which also implies lowering clock frequency. You'll want a recent graphics card, as newer generations are more energy efficient.hanselthecaretaker said:Does everyone who mines (even the little guys) end up benefiting though? In the economist link above it sounds like more of a "whoever crosses the finish line first" takes all, which is why there are people with room fulls of daisy-chained GPU's at twice or more than the cost they're worth and the smaller guys are giving up.
But the other side of the equation is that we gamers do not have to recoup the cost of the GPU in order to justify buying it. For the cryptominers, buying cards is a risk, as they may not make a profit if prices fall.
Of course for Bitcoin and some others there is special purpose hardware that is far more energy efficient than a GPU could ever be and much faster so the little guy doesn't stand much chance. The flipside in this case is that the miners for these currencies aren't driving up GPU prices.