Rode trials for the last 8 years of my life. In the beginning I really enjoyed it, met loads of people most of them awesome friends but also a couple of knobs Id rather not associate with (as with life in general like). Attended comps and met even more awesome people, went to Koxx days when it was cool, bristol rides, brum rides, london rides. Towards the latter years I started getting annoyed with the insane amount of money things cost and becoming a student doesn't help that. I found that your long-term enjoyment of trials is directly related to how well your bike is working, so when you can't afford a new part and you're making do, you enjoy it less.
Became more fed up with never having a decent bike, took up climbing with a friend and haven't looked back since. Id still enjoy going on a ride but I don't have a working bike, or the enthusiasm to fix it - its easier and cheaper for me to go out and climb.
EDIT: Years of dealing with arm pump though made me a better climber before I started though