Maybe you don't like Nintendo games, in which case I can understand you being dissapointed because the Wii has pretty much been surviving on 1st party games. Personally I have liked the majority so far because they do remind me of the N64 games that I used to play.
I didn't expect voice chat to be included in COD:WAW as it was released before Wii Speak, although I've always thought that the majority of voice chat in games was more annoying than anything else. Future games should feature it though for people who want that option.
Not sure why you are bothered by Wii Music and Party Babyz. They clearly are not aimed at you and there's no reason to deny the intended audience of games that they may enjoy. Party Babyz actually scored 7.5 on IGN so it's not a shovelware game and I have no objection to games that cater for kids/casuals as long as they are not lazy junk. A bit of something for everyone is fair.
There are already plenty of great games on the Wii from both Nintendo and 3rd parties (e.g. SMG, MP3, NMH, Okami, GH:WT, De Blob, PES, Shaun White etc). There are a lot more 'hardcore' games coming out this year though, with Tenchu, HOD: Overkill, Deadly Creatures this month, the awesome looking Madworld in March and of course The Conduit in June. More 3rd parties are shifting their focus towards the Wii too because it is the biggest selling system and because it's cheaper to develop for (which is good when in a recession).
2009 will be a great year for the Wii so you should really hang onto it. If you don't have a decent PC then supplement the Wii with a 360 or PS3 as well and then you'll be set for a lot of great gaming for the next couple of years.