How about at $200-$250, more Wiimote controls, and no gamepad? Would it still have failed due to lack of power?
It might have sold a little better, you solved the price issue by removing the controller. But the power issue, lack of killer apps, and lack of third party support remain. Nintendo was successful with the Wii, but even the Wii had run its course by the start of the decade. Without the controller and a 199 dollar price point we might have seen sales in the 20-25 mill range.