Well lets see...
1. The Wii has motion control.
2. The Wii is very popular.
3. The Wii has been out since 2006.
So what you said makes no sense.
See, IMO, Microsoft took the Apple approach to motion control. They didn't invent something, they took an idea, and improved upon it greatly and made it 1000x better.
Unlike Sony which just copied the Nintendo Wii and made it slightly more precise.... Nintendo needs a new generation console immediately, their Wii was selling like hotcakes in 06 and 07, but after that, it's really been a mess.