I hear you, and completely agree on some counts.
A lot of Wii owners, especially here in the UK, will be part of the Wii-for-achristmas-present-so-the-family-can-play-wii-sports demographic, and thus won't care for a new system unless they see a solid upgrade of their favourite casual franchises.
It's sad, but true. Now, the lack of games for Wii this year is wholly down to it's lifespan.
It's not got long left, bless it, but it's at least dying with a few new titles on the horizon.
SS is certainly a good start. I hope that Nintendo hit it right with the WiiU - I can see it being a GC/Wii mix.
Casual titles to cater the family audience etc., and a lot more first and third party major titles to woo the more experienced gamers. They have their work cut-out, either way.