Since I'm studying English at the moment, it's almost sort of an informal requirement to have been to an English-speaking country at least once. I'm still unsure where to go - UK, US, or Canada (and if I'll go to the US, it has to be on some Northern coast - don't get this the wrong way, Texans, but your state is simply too friggin' hot, even in winter
).
I'd really love to go, but it's very much an issue of time and money (or rather both), and I hate all the paperwork and appointments that go with it. On the other hand, it probably won't get any easier than now to go abroad while I'm still at the university.
A lot of my friends (and my sister) have been to the US though. They really liked it and said there wasn't much of a cultural clash one would expect from a foreign country, so I think I really would enjoy it.