I'd never really thought about there being fewer roundpens in Ireland, the UK, or Europe. Interesting.
I live in the US, and I don't have a roundpen. My grandmother has a 60 footer, 6 feet high, correct footing and all, and I have a standing invitation to bring my horses down to use it if I want (she lives about 5 miles away), but I never have. Just never had a need to. I hate riding in roundpens, as has been said by someone else a few pages ago, I've bashed my knees off the pipe too many times

. I'm content with my rectangular arena at home. However, I don't start colts, and I can really see how a roundpen could be a helpful tool, and money well spent for a colt starting/rebreaking barn. I survive doing my groundwork on a lungeline, but my horses are well broke and beyond bucking out and requiring tougher containment to stay on a circle. Someday, I'd really like to get into giving lessons, but it seems like a bare beginner rider could start on the lunge just as easily as in a roundpen. I'd love to try join-up with Scout, but I can tell you that I would do that once, and try again every month or so for kicks and giggles, and other than that a roundpen would sit idle on my farm.