Where I live, mainstream music is almost all....bad.
I mean, some mainstream songs turn out to be good, but when everybody discovers it, it becomes bad.
And then there are the songs that are just plain bad.
I'm against buying popular stuff on iTunes (check my iPod), but often, I find myself buying an album with a few mainstream songs on it.
I do listen to a few "mainstream" artists, but I usually listen to their tracks buried behind all the popular stuff.
So....I personally don't really like mainstream music, which is polar opposite to my friends, who listen to nothing but mainstream and have nothing but mainstream on their iPods.
Which, personally, I think is kind of stupid, because fads change, songs fade out of popularity, new ones take place, and before you know it, their iPods are all out of date again.