Remember, if you're in SeaWorld and choose to get the free park visits to BGT or Aquatica, then you forfeit the "second day free to SeaWorld" that has been going on all year. And you forfeit their other offer "pay for a day and come back all year"
This is great for non-Florida visitors. AND it drives up traffic to the other Busch parks. I hope it works out for A-B or else these new offers could be real killers for the company.