I've bought a few books from Amazon.UK, sometimes specifically because I wanted the British edition. It's a little more expensive, but if I can't get the book any other way, it's worth it. (And, in fact, going through Amazon.UK for one of the things I wanted ended up being cheaper than the British edition available used on the American version.)
"Now everyone was giving her that kind of look UFOlogists get when they suddenly say, 'Hey, if you shade your eyes you can see it is just a flock of geese after all.'"
"You can't erase icing."
"I can't believe it doesn't work! I found it on the internet, man!"