Yes definitely it is worth it. If you're going to DL for 1 day you will want to get in as many rides, shows/parades and have time to eat as well....ridemax is sooo worth it!
We used it for a 3 day trip in March and got about 15 rides in the first day with a 3 year old and a 1 1/2 year old. We then took our time the second day and used it again on the third.
We are going again in a few weeks and can't wait to use it and beat the lines, crowds and those trying to figure out their own game plan while they are in the park!
Ridemax is worth every penny!