Isn't Miyamoto's attention being diverted from games that really need it? He could've used the two years on Wii Music to make an epic game like Yoshi's Island 3D.
Miyamoto spends his time the way he wants to spend his time. Don't blame casual gaming. Blame Miyamoto that he's more interested in gardening (Pikmin) than gangbanging (GTA).
And reality tv is truly snowballing into stupidity with each new "twist". Over time this means more and more stupid tv shows are played in reruns.
A guilty pleasure of mine is watching "What not to wear." This TLC reality TV is fascinating because of the issues of self-confidence and self-image that it brings up. It's amazing to see people define themselves negatively when they're stripped of their familiar wardrobe, but then re-emerge with a new (hopefully positive) self-identity once they're put in other clothes.
It's different, but I posit that things like that are exposing human emotion and issues in legitimate and exciting ways.