I will jump into this discussion with the very unpopular response that a stop at CC would not be a deal breaker for us at all. However, we've been there a bunch of times and you have not. We would prefer a port at an actual "real" island. But I don't know your other choices or what excursions you would pick or the ages of your kids. We like having the BBQ on the island, that's about it. We don't love the fake, "Disneyfied" feel of the island, but that's just us. We have taken our girls to all sorts of adventurous excursions on the islands
DCL.stops at starting at a very young age but i know some aren't comfortable with that. Plus, I just saw that CC won an award as best private island amongst other lines. So i guess to sum up, i think your decision might have to do with not only the price but your expectation of the activities you'd do or sights you'd see on the itineraries without. Either way, you'll have the best time! Happy cruising!