At-par is not as exciting as it used to be, for sure. I think you might do better with the Be a Kid Again price through the Seaworld website... basically, tickets for adults at the price for kids.
When you buy the tickets online, they give you a confirmation page to print out, just like an airline online checkin boarding pass. Last year, I think we needed to present the printout with photo ID to get in. Then you can get a pass to return anytime within the next week! They really, really want you to spend more time at Seaworld.