i certainly don't.
anything that is beyond the realm of my comfortable familiarness is not inferior, but uncharted, a region into which i travel to adventure and discover, and upon becoming familiar with it, it becomes an extension of my "ideal" music.
to think otherwise is intentionally ignorant, or closedminded. if i discover a band that i absolutely love, would i then listen to this band only, and reject even the possibility of anything else as being inferior? i claim this hill, for it is the tallest i have yet seen, but i refuse to travel beyond its horizons to see if there lies yet a higher vantage point... foolhardy notion imo.
but suit yourself.