Yup, money wasted. Bought a sunpass last year on our winter trip to the gulf. Wasn't clear on exactly where we would end up going and with 4 weeks in Fla paid for a pass during a pitstop at a Fla rest area. Process for purchase is thru a vending machine so that part it painless except for the charge to a credit card. Think I only loaded it with $10 so not a lot invested. In the end we didn't travel on any toll roads or bridges so it should be good for another year. Don't know if they expire.