"Funny enough Nintendo could get away with having a watered-down spinoff with Mario and it would still achieve a level of success. The Mario name is THAT strong."
The games being good don't hurt. From most accounts, that isn't the case with SCL. And I noted elsewhere, SCL was made in lieu of a proper SC game, while the Mario spinoffs are their own games.
A flashy-first game is awesome when it comes out. A great-first game is awesome forever.
Plus, just for the hell of it: Kelly Brook at the 2008 BAFTAs