We actually bribed Kellen with the promise of a new transformer to eventually get him to try the waterslide a second time. Ian had missed catching him the first time and he'd went under the water, which he hates. I was sure he'd end up liking it if he gave it a chance. His first response to my promise/bribe, "It's okay mom, Christmas will be here before I know it." He did try twice more, but it wasn't fun and he wasn't doing it again. In his defense it was a dark, totally enclosed slide and was super fast (Ian can attest to that - it caught him off guard the first time he went down! And he had Lanelle with him that time. It took them quite awhile to come up. Thus, Lanelle's refusal to go again.)
So, the waterslides - not a hit.
However, I did not realize how exciting the hotel would be. I'm thinking it was their first time in a hotel, which sounds like they never travel. They've stayed in a vacation home, in relatives home, in a tent... but unless someone can jog our memory, we're pretty sure it was their first time in a hotel. Their own big bed to share had them over the moon. Oh, and I can't forget the excitement of the elevator or having a turn to use the card to get into the room - seemed to be the most amazing things EVER!