I was thinking more along the lines of simply the Hollywood movies where the dynamics are set by the enormous market forces which basically filters against anything which isn't lowest common denominator.

When you get down to comic books and animations, the market forces aren't quite so vicious and your "10% okay vs 90% of everything is crap" doesn't get so filtered out. Consequently, you get more of the standard curve--some stuff is bad, most stuff is average, some stuff is good, and a few gems poke up every now and then.