Most gamers pay their own electricity bills and most of them buy cards or computers with graphics cards without a PCI-E power connector if going by volume. Im sure even enthusiasts are starting to notice an increase in their energy bills. Performance per watt is becoming an even more important metric than performance per mm^2.
You don't expect there to be good idle performance? IE GT200 like? Sure power is going up. It has in all designs. But if you don't game 100% of your Computers usage then you're actually likely useing less power now than you were with G92 designs at idle.