The thing is, I'm still slightly convinced that the Wii Fit is the Brain Age for the Wii. Brain Age was the game that convinced thousands of aging baby boomers, including my mom, to buy the DS only to use it for a week, maybe a month, and then forget the device. I can say with 100 percent authority that my mom hasn't just given up on the DS, she's forgotten she owns it.
The Wii Fit will certainly strike a chord with some aging baby boomers, but I think it will strike a bigger chord for that group one generation younger so worried about their health and physique. But will it really get them into gaming? I don't think so.
When deciding whether they were going to buy a Wii, my mom and step-dad asked me if it came with Wii Sports. Then they asked if they would ever need to buy another game again. I'm thinking this is more about buying an ideal, a concept: That Wii Fit will make them fit, or healthier, than it is about getting them interested in gaming.
As much as I want to believe Nintendo's line, that the Wii in breaking from tradition and cutting a path into the untapped non-gamer, general population, I think what they're really doing is finding ways to attract people to gaming who will rarely stick to it by tapping into the fears of an aging population.