To me, that's all the more reason to do more. What better way to differentiate yourself than to do more than has ever been done before? Islands of Adventure made history by making the most immersive attraction in history in Hogsmeade, and look at the benefits. Universal Studios did the same thing as a working movie studio, even though they've moved beyond that now. If someone wanted to do the same with a water park, I'm sure they would reap some serious benefots.