For the most part, as a user-base grows it becomes able to support more kinds of games with high sales and it can support more games being released at the same time without having (too) much of an impact on each other. When a system gets to selling more than 50 or 60 Million units worldwide, and is popular enough that most (somewhat) dedicated gamers owns one (even if they own a HD console as well) then the only reasons your game sold poorly was because people rejected it or because people didn’t know about it. Now, being that the Wii has sold many million selling core titles and Nintendo doesn’t seem to have difficultly selling any game on it, I don’t think you can realistically claim that there is something implicit about the Wii that makes gamers reject a certain kind of game on the Wii; which would imply that people are rejecting games because of their quality or because the game is not that appealing in general.
To demonstrate my point, how many third party Wii games that (supposedly) sold poorly because they were on the Wii do HD console fans wish were released on their system?