curl-6 on 21 January 2017
I think its a bit of an oversimplification to say that the Wii sold only because of it's motion controls.
Some of its biggest sellers, like New Super Mario Bros Wii (28 million) and Smash Bros Brawl, (13 million) use them barely or not at all.
The Wii had more going for it than just motion controls; it was significantly cheaper than the competition, and in addition to blue ocean titles like Wii Sports/Fit, it provided highly desirable "core" games like the dark Ocarina successor Zelda fans had been waiting for since the N64, an epic 3D Mario widely considered one of the best games ever made, the first 2D Mario on a home console since the SNES, etc.
