The Orlando MagiCard is free.
Got my crazy $180 a day minivan rental down to $60 during Spring Break/Daytona 500/NBA All-Star Game.
Orlando Magicard - Orlando's Free Discount Card - Official Florida Vacation Information
FYI: We did the Boggy Creek Airboats last month. Its not a creek, or the Everglades. Its on a marshy lake. It was cool, but not authentic. I'm sure there are better tours "down south".