This year, when you buy a 1-day pass, you can turn it into an AP automatically and use it for the entire year at no extra charge.
I love Sea World... I go there sooo often, and really never get sick of it. I have a 2-day conference there on Thursday and Friday, and will definitely spend a little time there on Friday afternoon, as my last meeting is scheduled to end at 11AM. I can't go there without riding Krakken at least once, and visiting the dolphin nursery. (Yes, I ride Krakken even when dressed for a meeting... I just always remember to wear shoes that will stay on).
I have yet to see the new Dolphin show (Blue Horizons), as its never been at a time that's convenient to my meetings... (dont'cha know they should work around MY schedule...????) maybe this time.