Also, it's not entirely true what you said about voice dubs and anime.
There are a lot of shows with very good english dubs that most nerds prefer over the original audio.
DBZ is a very good example of that. I don't know any that prefers the japanese voicing of dbz.
It's just that bad voicing detracts from an anime. If we don't know the language, that's one less annoyance to deal with. However, there are many good dubbed shows; Evangelion (though I still prefer the Japanese for this one), Gundam, Cowboy Bebop, Samurai Champloo, FLCL, DBZ, etc etc. The list really does go on and on.