I have to agree about the balcony. It changes the whole cruise experience.
I know that Disney cruises are expensive- but you’re a long way off - so you’ve got a while to save.
What I like about a balcony is the abiity to get away from crowds for awhile. I know people always say “I’m never in my room”, but if you aren’t in the room, then you’re out at the pool or wherever with masses of people; but sometimes you just want to find a quiet spot for yourself. With your own balcony you can pour yourself a glass of wine or a nice tropical drink and have a quiet, private place to sit and watch the ocean flow by. Paradise.