If you are interested in buying a season pass to Six Flags St Louis, you might want to look into this deal.
If you buy 4 or more season passes for 2013, you get them for $49.99 each (3 or less passes are $59.99) and you get to go for the rest of 2012 for FREE!!!!
If you do buy 4 or more, you will also be automatically upgraded to Gold when you process by October 28th. This will include FREE Parking!!!!
Go here to get all the details.