Disclaimer: I don't have a Kinect, but know someone that does. I do have a Wii. I am very good at steering people in the right direction to get the results they want (use your internet skeptic filter as you see fit) My post will probably have questions at the end that you need to ask yourself (Drinking beer so I might forget

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Answer to OP: Yes, but it depends on what you are trying to achieve. I will give a lengthy argument and
Here is the allure of Kinect for me...my kids (4 and 18 mo.) can possibly handle the Kinect interface and get into gaming with me. I have tried to use the Wii with my 4 y.o. and the controller is too small for her hands. The Kinect removes that hurdle by being controller free. That is a huge hook IMO.
My friend that has the Kinect (his kids are a couple of years older than mine) says they love it. He has had some of the same challenges that I have had with just using a controller. His kids are now being able to use the 360 when they couldn't before.
I will say I don't think the Kinect is at its highest potential, but I do think this is the time it will stick. Look at the iPad as an example....how many times has a tablet been tried and failed? The same argument could be said for motion sensing hardware.
IMO a console that senses motion is the future and will most definitely be integrated into the next generation of consoles. 2 of the 3 consoles have relatively similar technology and the 3rd has a vastly different tech. You have to make a decision about which of the 3 you see as the most viable. Personally, I think that it will ultimately settle on a hybrid between controller and Kinect interface. I envision the Kinect of the future replacing one of the analog sticks (used as the camera stick for games) if not both of the games.
For the questions to ask yourself...
What are you trying to accomplish?
How old is your daughter and do you think she can handle a Wii controller?
What do think is the future of motion controllers and what controller is the closest to that?