Speaking to VentureBeat, NoA boss Reggie Fils-Aime has claimed that Wii MotionPlus was too expensive to be implemented at Wii’s launch.
We were aware of that technology at the time we designed the original Wii,” he said.
“But the cost would have been too high for the business model. It would have been unacceptable.
By waiting about three years, the costs come down substantially and it becomes a viable product,” he said.
So that’s why you don’t have a “proper” light saber game. More through the link.