We are booked for our 2nd cruise this fall....last time Eastern, this time Western, then it's the Panama Canal if they offer it again! We loved it so much, if we have half the fun as the first time, I will be happy. But, I know it will be much more magical.
This is how WDW is for us, each trip we try different/new things, the kids are older each trip, and that adds its own variety. Every trip seems to be better than the prior one. That's how I think that the cruises will be too.