Kinect will never succeed because Microsoft lied about the way it was supposed to work.
I don't know if anyone remembers or not but that E3 show they debuted the Kinect at showed them doing all sorts of cool things that you will never be able to do, also I will never forget what they did to Tony Hawk the look on his face was priceless more on that after I explain the lies microsoft told everyone.
First off you were supposed to be able to scan things with the kinect and use them inside the game. Wow sounds awesome right? Yeah also apparently unattainable for the cost they projected. I remember their kinect demo having people hold up baseball bats and everything else and letting the kinect scan it and then it was being used in the game.
In comes the Tony Hawk priceless face, he was up after the Kinect demo to show his fancy new skateboard controller that flopped horribly. The reason his face looked so in disbelief is because they just showed the kinect scanning a skateboard and then using it in whatever game they were playing, that's a nice kick in the teeth lol.
Plagued by lighting requirements, and the fact that it was aimed at children even though any child under the age of 12 wouldn't even be recognized by the damn thing made it even worse for the kinect. The whole E3 conference is on YouTube somewhere I'm sure and you have to see it just for toy's face not to mention how bad Microsoft lied to the potential buyers of the hardware. Screw you Microsoft! !!!!