I freely acknowledge that Wii Music isn't the sort of game that everyone will enjoy, or even understand. It's closer to interactive art in conjunction with software than it is traditional challenge-based gameplay. But that doesn't detract from my enjoyment of it as a longtime Nintendo fan, especially one who used to hook up his SNES to the VCR to create audio-visual title screens for family vacation videos with Mario Paint.
I can understand if Nintendo made more or less games for any one particular person in any one particular year. But that's just the way of life, not some personal affront to the world at large. Ultimately Nintendo is making creative, fun, and innovative titles, and they've been doing that for years, and I hope they keep doing that for years to come.