There's a zen philosphy (ok, I made it up).... In every artform, every way of expressing your creativity...... 80% of the stuff produced is going to be shit.
Most authors write boring crap
most artists are crappy deviant art failures
Most poets cut their wrists and wear black
Most music is noise
most livejournals are emo
most myspace people are teeage camwhores
most webpages are geocities shit
and most AMVs involve something linkin park, emo music, shitty music, naurto, dbz, inu yasha, cowboy bebop, CN crap, 4kids crap, pokemon, and other crap.
However, there are good AMVs. Those are some of them. Well, they're better than most of the shit that comes out, at least.