I've had my heart set on a convertible for our June 3-12 trip. I think it would be the icing on the cake for my 2 DD! The cheapest I can find is to book through Southwest with code WN917 through Dollar for $367. That's a lot of money for a person who ususally wants to go the cheapest route. Will this even be worth it? Does a convertible make that much difference? We're starting off at Universal, on to Disney then Vero Beach. Opinions, please!!