I don't think Wii's going to be lagging behind in terms of graphics, the first Wii games were done in less than a year because nobody was betting on Nintendo anymore, devs started working on the Wii only after the E3 2006. The first generation games for the console are graphically aweful, but the next wave is gonna rock. Moreover the Wii don't need ti live 10 years, if it keep selling that pace it could reach the 100 million user base in 5 years how knows? And at this price nobody cares if we have to buy a new one 5 years latter, or maybe devs won't like to change every few years...