How is it priced, by the way? If it's $29.90 or 29.90, well, that's crazy.
Some remarks: a. I think it's too soon to say that casuals have gone; both 3DS and Wii U have a higher price than DS and Wii, which is an important factor for those gamers; also, it's not automatic that are on board immediately; PS2, for example, reached the casual audience quite late in its lifespan (Singstar, EyeToy, Disney tie-ins, etc.) and nothing assures you that this won't happen for new Nintendo platforms. b. anecdotal evidences don't mean anything, because I can counterbalance you by saying that here all my cousins wanted a 3DS to play Mario Kart and Inazuma Eleven (which is still a DS title, not even a 3DS one).
Of course, Nintendo has a lot to improve. Software line-up is growing, and it might interest many people that drove DS success; prices must be cut further, though. Then, they have to start to change some stupid business practices; no more Touch Generations software for more than 20 bucks; no more Pokémon on DS... Kill the DS already! And so and so forth.