Ubisoft puts out graphically-powerful games and the Wii simply can't match that. I don't blame them for not dumbing down the graphics of their top-tier titles. Also, the Wii was aimed at casual gamers like the young and old and they're putting out the games they think will sell for the Wii which has games like Carnival Games and Game Party in the Top 20.

I own a Wii but I also have a PS3 and a PC. I realized a long time ago that you're gonna need more than one system in today's market and companies won't cater solely to the Wii just because we want them to. I say 'solely' because the graphics will be far lower quality with a COMPLETELY different control scheme, making it a whole new undertaking for the developers instead of an easier translation. If you don't shell out the cash, there are certain games you can't play and you'll just have to accept that. No big deal. At least you've got Metroid and RE4, right? :)