Games by Nintendo are selling the most on the Wii, but I find "Nintendo has put the most effort into their Wii games" a much likelier explanation than "Wii owners don't want to buy anything except Nintendo's first party games".
Remember, there has yet to be a third party game to sell seriously less than expected on the Wii, and the amount of games with a lot of effort behind them is several times larger this year than 2007.
Sadly this is one of the last straws Wii haters have, so we'll be seeing a lot of it in the near future.
True, but you just know that when that hurdle is overcome, the Wii haters will invent another. Tie ratios, anyone? (And boy did that one backfire...) Alternatively, they'll just start repeating them all over and over again, in hopes that repetition will lead to reality. Look at what's been going on this week, for example.