let me just add that my perceptions of living in america (LA/NY) have been idealistic and only take into account (when daydreaming or whatever) the positive aspects and not the negatives. when people see something they like they mainly see the benefits and want to believe what they conjure up, but in reality (with the questionable laws over in the US), i think sometimes its best to stick with what you have and maybe go on a holiday there, also think it through thoroughly before making a rash decision. It'd be a huge change.
With me, the one thing i can never get over is the terrible weather in England. The fact that we cant have a day without the dull grey clouds blocking the warmth and sunlight; hardly giving us a glimpse of any bright sun rays depresses me and makes me dream of living in a much better, warmer, happier place i.e. California with palm trees and 30 degree weather.
im speaking for myself and i can only decide once ive actually been there. for me i desperately want to go to america, i always have and have always been attracted to what ive seen on the television - but again, what they depict is all the glorious stuff, a rich nation with a lot of resources, better than even the UK for the most part; similarly television and the media only depict africa as a poverty and disease-sticken land whilst taking a minimalist approach towards the showcasing nature reserves and truly beautiful side of africa.