For Worlds in Florida again, I think it says a lot about where the bulk of the player base is - Florida, California, Hawaii (closest to Japan). Is it just as easy for people in Texas (around midpoint of the state) to go to the Florida location as it is to go to Southern California locations?
I believe it's further to go West than East.
As for next year's worlds, I hope it's closer to the airport than '04's-that cab ride was really long.