I hope Nintendo considers this sort of data in setting production volumes...
http://seekingalpha.com/article/72992-gaming-demand-halo-3-snipes-gta4-wii-still-dominates-consoles?source=yahoo
It’s significant that the Wii is experiencing substantially higher
demand than it did during it’s launch period, typically the case and
indicative of a more significant trend. The escalating number of
shoppers implies that many people are still “discovering” the Wii, and
the massive volumes of traffic seem to reach beyond the “gamer”
demographic. As gaming is clearly going mainstream, the intuitive
design and social elements of the platform have consumers turning to
the Wii in droves.