We got 3 passes to Six Flags Great Adventure and Hurricane Harbor (they are two separate parks here). DD didn't need one yet. We also got a parking pass but unfortunately it's only good at your "home" park this time. (ARGH!) The passes will get us into all the other Six Flags parks so we are heading up to SF New England this weekend (and I wish we could go again, it's really charming!) Unfortunately, I'm not employed at the moment so we will go to Great Adventure at least once a month.
We're also getting a combo ticket for Hershey Park and Dutch Wonderland. DS still uses a kids' ticket this year, and DD doesn't need one, so for a total of $200 we will get a full day at each park, plus the preview night (3 hours the night before) at each park, and mini-golf at Dutch Wonderland, and ZooAmerica in Hershey. I think that's cool. We are making it into two separate camping trips so that'll be the bulk of our summer vacations this year.
Next year we are determined to go to Florida, but we will ALSO get the Busch Premium Passes for 2 years of unlimited admission - Sea World, Busch Gardens, and Sesame Place. I hope they don't raise the prices too much! I'll do Flex Plan though.