I think DH means constricting yourself to only one genre means you miss out on all the rest and potentially losing the opportunity to listen to other things you might find you really do like. Music does have a way of growing on you. I was not much into trance or anything with a serious bass beat to it, probably no more than six months ago. I found a couple of remix things online, and they weren't bad and who knows if this will cause me to like others in the genre?
While soundtrack instrumental scores may be my bread and butter when it comes to musical taste, its far from the only one. There's always a saying that goes something like this: how can you say you hate it, when you refuse to try it? Sometimes you just need to give some genres and songs a chance before writing them off.
Just for the record, here are some other genres I really do enjoy (maybe try a few that sound interesting)
- soundtrack (mostly stuff which is background music in films)
- instrumental (musical renditions, Lifescapes series)
- classic rock (Billy Joel in particular)
- soft rock (Karen Carpenter in particular

)
- oldies (50s-70s music)
- new age (largely instrumental)
- country (some old, some new)
- children's (mostly Disney, but that's not a genre

)
- disco (its not dead on my computer

)
- contemporary (easy music, no strong lyrics)
- environmental (soundscapes, Lifescapes series)
- rap (the early years, late 80s only)
- musical (Broadway stuff, film adaptations)