@reask: I know the thread. I believe i was one of the first to comment it.
The thing is, that the Wiis lineup isn't for you. So far the best games with shooting on Wii are MP3, RE4 and REUC (MOHH?).
Next ones coming that have potential are Dead Rising, Conduit and CoD, so i don't blame you if you like shooters and complain about nothing to little to play.
If CoD or/and Conduit are any good, they sell well (as the Sega rep believes) and we'll see other games like that on Wii. It may take some time but it will happen.
As you mentioned Braid as playing Wii type of games on 360, it works in the other way too with the games i mentioned. Besides Wii type of games is pretty stupid way to describe a game, since it has the most varied library out of the three.
So, are you saying it was a fad for you? Had to get one because it was "cool"? I believe it doesn't quite qualify as "fad", since they tend to be widespread and the game sales doesn't support it being a fad.
I don't really have an idea what a girl that age plays. Nintendogs? Petz?
But what about Boogie or the Dancing Stage (or what was it)? Wii Fit?