Returned from vacation last night. I can see why so many Minnesotans end up in Fort Myers. It's big enough that there's plenty to do but small enough that it's easy to get around (except on Fort Myers Beach and Sanibel). Also, Kennedy Space Center is way better than I remember it (there was a big piece of the space shuttle Challenger that you couldn't not cry at), and Universal Orlando was great with The Mummy and Minion's Mayhem sticking out as particularly enjoyable rides. Spirit Airlines came through with no problems whatsoever, either way.
My parents drove 200mi each way from southern Florida to visit the Kennedy Space Center last week. They were there from 9am-6:30pm and said they weren't able to see everything. Lots of standing in lines, but I think they liked it and wished they had more time there.