In reply to Steve Humm 4395:
I actually quite like bouldering on my own...
I think for me the attraction is the amount of time that you spend on moves that are at your limit - my experience of indoor routes tends to be that if I can't immediately do a route I go up, climb, hit a hard move, can't do it, hang for a minute, try again, fail again, lower off, try a different route. I can't really be bothered hauling back up loads of moves I can do just to get to the one that I can't, and it seems a bit harsh on ,y belayer to hang around up there and have a whole series of attempts with five minute breaks in between while they're stuck holding my rope.
Whereas bouldering, I get on, get to the hard move, fall off, recover, get back on (maybe skipping the start), get to the hard move, fall off, recover, get back on... I spend a lot more time working on a given move that I can't do, and as such have to think a lot more about how I could be improving on what I'm doing in order to make it work. I had a really satisfying bouldering session last night because, even though I didn't finish any of the routes I've been working on, I managed to complete a couple of moves on them that I really had to think about.
Also, I find the flexibility and lack of faff a bonus - people take turns, so you don't have to pick a route based on what's free, you can move to a different bit of wall quickly and without consulting anyone, and you don't spend half the time hanging around holding someone's rope.