This is one of the few gripes Natal has. It tries to be more than just motion sensing. But what if people come over to your house, or if you have a party with loads of people? It will get crowded and Natal will sense too much interference. It will also make it harder for you to move.
I want to accept Natal as the next big thing, and I believe it can, but its a little too early for that and there are very little alternatives for problems that can occur, which is a reason why I don't see Natal as being a great success.
Gaming was meant to be played with controls. Although the Wii uses motion sensing, it still has controls and recognizes them, even using the Gamecube controller for some games. You being the controller, its too much work. I never really viewed gaming as a tiring experience, its just something you do when you're bored or when you want to interact with friends.
This is the true definition of owning.
