Any music you haven't developed an "ear" for, will seem repetative. I've heard people make the same observation about Baroque (pre-classical era) music.
I've been a fan of house, techno, trance, lounge, drum & bass, jungle, breakbeat, acid jazz etc. for more than a decade now. As any genre you have dig through a lot of mediocre stuff to get to some quality.
I'm a regular addict of digitally imported (online trance, etc. radio site) so i guess i am a trance junkie as well. Unfortunately a lot of the trance genre is total garbage ie. the same repetitive (same melody playing for 2-3 minutes straight with no change) "uplifting" crap. That is the kind of trance i hate yet that type is very popular I pretty much also listen to most of the other channels on that site as well such as goa/psy, drum&bass, etc. Drum and Bass has the best basslines in my opinion but it can be repetitive too if you listen it for 4-5 hours at a time
I'm from Europe originally (live in Canada now) so i'm also addicted to some of the cheesy Eurodance/rave (Blumchen, Dune, etc.) crap. Gogo 140+ bpm!
Yeah, I like drum'n'bass but I can't usually listen to it for very long periods of time. I'm pretty much a trance junkie, but go figure since I'm a trance dj. I like most forms of electronica, but as is pointed out there are very bad instances of Trance out there. You should see me listen to records in a record shop, half the time I don't even know why I bother listening to some of them.
Just ask Oscuro. =D
Highly Recommended Trance DJ's:
Armin Van Buuren
Paul Van Dyk
Highly Recommended D'n'B:
Dieselboy - The DungeonMaster's Guide