"This is the BEST DAY Ever Mom!" A direct quote from L & M.
Not so much for the parents.
I think you have to go into any amusement park in the summer knowing: a) you'll be hot and sweaty b) whatever the day, there will be crowds and lines c) you will spend too much money and eat too much junk
In addition, if you're a neurotic like me you will also d) yell too loudly as one child keeps wandering too far away e) cringe at the thought of the germs living in the water park area
And if you are married to Mr. Scary you will f) get annoyed when he keeps walking off and not telling anyone where he's going g) give him the silent treatment h) make-up and still love him because it's a team effort to get through a day like that.
That said, you are also guaranteed to get huge smiles, screams of joy, and lots of giggles from your kids. And that is what makes it worth the trip.