just playing through a bass amp doesnt automatically mean your going to be a metalhead.

when someone else is using my amp, i'll usually steal the bass players amp. i love it because you can do all the low notes etc without it sounding muddy at all. and high notes still sound fine- i actually like the sound of high notes better on a bass amp then on a guitar amp, just because its alot more mellow. (which suits my style and taste) feeding distortion and all them other effects is also fun stuff.