First, "out of state" doesn't mean "across the continent" (though that is more likely in Seattle or SF, since they're rather isolated from out of state populati

First, "out of state" doesn't mean "across the continent" (though that is more likely in Seattle or SF, since they're rather isolated from out of state population centers). Second, that is not evidence in the slightest of people doing this "every few years". Hell, most people don't want to move locally that often, let alone an expensive and very disruptive long distance move.