MikeB on 30 January 2008
Jeff Bell, VP of global Xbox marketing: "We're positioning ourselves to be ready if, in fact, gamers find they're ready to graduate from a certain experience potentially with the Wii, either because it's limited on the type of gameplay that's available or the technology in that box"
http://www.pcworld.com/article/id,141996-c,gameconsoles/article.html
Although I agree there is little overlap between Wii and other consoles with regard to features and software library, and most performance demanding games are better played on more powerful systems, I wouldn't have used the word "graduate" in this regard.
