Was that $22 one way for an adult? Do you know the rates for children, we have a 6 year old and (2) 2 year olds (which I think they would be free). We are traveling w/ 3 other people so it would be a party of 8, how many people did the van hold?
I also found that renting a car was the best option for us. I love using a towncar from MCO, but I could rent a car for the entire stay for the same price, and Route 417 (the Central Florida Greenway) is a very easy drive.