It has always amazed me how many people retire to somewhere else, somewhere warm and then return after a few years to where they spent most of their lives. So, a couple years ago I started asking some of these folks questions. Also, I asked snowbirds where they were going to live when they got too infirm to snowbird.
Bottom line: There is no place like home. Home being the place where their lives and aqaintances have been.
Some people can move and be happy. Most I know cannot. So, be very, very sure of your decision; especially in an economy that may very well make the decision permanent.