It's well known that the "casual" gamer was the key to Wii's success and profitability. I mentioned the balance board to simply illustrate how much $$$ Nintendo made compared to the other consoles this gen. A comment was made about Nintendo going downhill as a company. While the reference probably was aimed at the content more than the profitability, you can't deliver any content if you are out of business. A Turbografx site should know this better than most.
As far as content, there were plenty of quality Nintendo titles on the Wii (if you like Mario, Kirby, Zelda and Donkey Kong. Not everyone does.) Still does my Xbox 360 have more hardcore titles than my Wii. Yup. I still end up playing the Wii more though. Heck recently I've been playing my TG-16 more than 360. Go figure.
As far as the 3DS it may be a gimmick but Vita is not doing well whatever reason.