Thanks for the replies.
I think it really is the Disney experience that I myself would miss. My kids will miss the Disney character meet n greets, my husband will not like that there is not a movie theater, I'm not sure about the shows, but we love the Disney shows on board thus far (we've only done Fantasy and Dream as we can only sail out of PC at this time).
I don't care which ports we go to, we have only done 1 port excursion and I hated it. I'm there for the ship honestly. I don't like casinos, and don't want to walk through or by one. I don't want to constantly walk by stores which my kids will beg for things in I'm sure. We would love to do an Eastern Caribbean to explore those ports possibly (might like them), but we can only sail during fall break and that's always Western Caribbean week for some reason.
Castaway Cay is our very favorite day, we look forward to that beach every time and can't imagine another beach/island being as nice, with free food as well? The kids club, as mentioned, my boys adore and spent much time only the play floor and did many of the "events" that were scheduled and centered around Disney characters. We'll miss the Aquaduck and knowing that we can eat anything and it's included (obviously with a price).
Also, we are a family of 5. I need a room that can fit 5 of us, and online I can not get a quote... SO annoying!
I'm sure I am missing something.