I think Microsoft has accomplished what they wanted with Kinect so far. They are trying to target a market the 360 has had very little success with it...and it looks like they have at least caught the interest of the casual gamers and the mainstream media. It's now up to Microsoft to complete the sale.
Games don't need to be a deep or complex experience to be enjoyable. When playing games in a group or party setting (Which Kinect is definitely targeting), your not going to be playing the game personally for hours on end...unless you're a system hog and don't like to share lol. So you don't need a super deep experience. Just something that is going to be fun to play with others.
This has been Nintendo's main strength for quite some time. A lot of gamers rag on Mario Kart, Mario Party and the Mario Sports games. As single player experiences the games are good but not great. But when you put a room full of people playing against one another they are an absolute blast. They really aren't deep or complex games, but they just work. And a little Mario charm can go along way.
The early Kinect games may not be mind blowing experiences. But that doesn't mean they won't be fun. It will take time for developers to think outside the box and create a different experience. Whether they will is a different story.
