Contrary to what most magazines advertise, FL actually isn't very windy at all. They get wind on occasion but it's light by comparison to most other consistently windy places. You'd have to have the tour stop there in the wintertime when it has the best odds of wind.
Could do a Mau'i, Frisco, Oregon, Padre Island (north or south could work), Michigan, Cape Cod, New Jersey, North Carolina, South Carolina, Florida tour pretty successfully if you planned the timing out right.
There's a collegiate tour that goes around here in the U.S. but they don't get the participation or recognition necessary to really make it a big thing. I bet if you could get the right kind of sponsors involved with the right kind of riders, you could really make a pretty successful U.S. Kite Tour.