My SIL's parents moved here years ago when his father retired from the Bobbie force. His mother is a nurse with fibro---- and needed the warmth of California.Many people are in the same boat. I'm English and when people say what are you doing in NY, I simply say that I can afford to live here! Despite taxes, cost of living etc. the US is currently much cheaper than the UK to live in.
My Dd met him on e-harmony and they've been married a few years. He transported over here when his company crashed and burned.
Now his brother has transported here too. He's in NYC.