Going to the US just seems like an enormous hassle for a minor cash saving, which would probably be offset by the fact that you don't come away with UK flying exp anyway. Maybe when you could get 2.05 dollars to your pound but now, unless you're in a hurry it seems a bad idea.
I bet there would be loads of hidden cost associated with going to the US that you don't think about as well, like transport from the Airport to your destination. Which usually costs a bomb - would cost me about 20 quid to get to LGW and back, for example.
Besides, who would feed my fish when i'm gone?
