If games games continue to come out for a system, they will continue to sell. It's different for something like the Genesis which was massively successful but had no new games for long enough to be abandoned by most people. PS2 hardware and games are still common and the next generation didn't offer anything new and improved (motion controls = poorer gameplay). They shouldn't be pushing the PS4 and Xbox One until another 5 - 10 years. The Wii is a repackaged Gamecube and games are still coming out for it.