because i'm a disneyholic, as are some of the people on this board, and given that i too have to cross the atlantic to get to WDW, I've found some very useful information on this board.
And if truth be told, I am sort of an Anglophile as well (a good many Americans are). And I do have many English friends where I live, but the people I tend to see most eye to eye with are Americans. There are just certain strange things that are curiously American.
And if i'm going to go for broad generalizations, Americans are loud, while Brits are reserved (think diplomatic corps type Brits). When I'm being my loud brash American self, I'm going to be more comfortable in an American setting (of course I too can be reserved and diplomatic, but that's the professional self, not my comfortable self).
Nevertheless, the book club I'm in has 10 Brits and 2 Americans (counting me). The upshot of that, is I hate most of the books we pick since they're almost all British authors (I prefer lowbrow American books

).
Probably the main thing is, when you're far from home and you're in need of that cultural support, what you're looking for are people who have grown up with your experiences. Going to similar schools. Going to girl scouts, selling girl scout cookies, learning to be pyschotically devoted to the stars and stripes, making s'mores, drinking slurpees, summer camp (if you ever saw that Bill Murray movie Meatballs, that's exactly what my summer camp experience was, as a camper and as a counselor), and on and on and on and on....
Stupid silly things that make one feel better when you're far from home.
One of my best friends here is what we both affectionately refer to as a hayseed from the midwest. We probably would never have met let alone have been friends had we been in the states as we're worlds apart in many ways. But here we've been best buddies for years. And we both provide the other an outlet when the cultural differences around us simply get to be too much (and sometimes those are cultural differences with our British friends).