Anyone know how much auto-train business is Floridians going to the northeast and back, rather than northeasterners going to Florida and back? It seems like we always talk and think about it as the former (including snowbirds who may be legal residents of Florida but who spend 5.5 months up north where they are originally from, accounting for all those Florida license plates in driveways in New England in the summers).
I'm picturing Florida folks taking a trip to Pennsylvania Wilds, Adirondacks, Green Mtns, White Mtns, Acadia NP, Gettysburg, Concord and Lexington, etc., etc. (Hopefully not all of those things in one trip--and hopefully not too many people are foolish enough to use the auto-train to bring their car on a trip to DC or NYC or downtown Boston, where no tourist should drive if they can possibly help it. But then I wonder about Floridians heading to DC etc on planes and non-Auto trains.)
Or even Floridian retirees who hate the summer heat and can afford to spend four months in a cottage on some pond in Maine or whatever.
Upshot: I know there are hordes of tourists headed to Florida all the time, but there are also millions of people in Florida and growing every year and some of them must go other places as tourists, family visitors, "summer people", etc. But how many?