In five years, the Wii will be twenty years old. The wiibies will be wee wiimen, though they can't sign for a Fedex package. Apparently, you have to be 21+ with ID, if asked.
For enough people, Mario the mascot is a religion. Being that for many, Wii Sports was their first exposure to videogames, they may have no attachment to a Mario, Sonic, or Mister Chief. Maybe the wiibies (weebs?) will be the first generation that recognize John Lennon's future.