NONE of the consoles will die out. Why? Because as long as the companies keep making games for them people will keep buying a console to play them on.
Nintendo will OBVIOUSLY hype up the release of Wii Sports Resort and Motion Plus, driving up sales even further. If they announce a killer app for the Holidays (like a Zelda or Mario game) sales will ramp up as well. Hell, even the releases of titles like Sin and Punishment 2 and Punch-Out!! will create some sales.
The only way a console can truly die is when the console maker stops making games for it and unless the company is REALLY in trouble its very rare. Hell, Nintendo kept releasing Gamecube games until the Wii was launched.
So to believe that sooner or later the Wii will "die out" as well as the 360 and PS3 is being idiotic.
