A family can spend a pretty nice day at Sea World and never even visit the Orca enclosure.
After the whales are gone, what animal will be next on the list to free?
Sea world served it's purpose, but now has to evolve into something better than stupid whale tricks or ... Cease to exist
As far as serving its purpose, it already has, you choose to focus on one aspect of what they do. As far as evolving, I trust you're good for a monthly, recurring withdraws from your paycheck? As is, they do take donations if you would like to start off with a cash donation.