I've been on the Miracle and the Pride. My first cruise was on the Pride and my wife and I had an interior cabin. I felt like we were being teased when we walked by cabins with balconies.
The interior room wasn't bad, but for our aniversary on the Miracle, we decided to get a balcony. Wonderful times. It's nice to be able to get room service for "pre breakfast" and eat it on the balcony while your significant other has the freedom to roam around the room while getting ready for the day.
With that said, we're going on another cruise (Victory) to the Southern Caribbean. That schedule is jam packed. We're going to be bouncing around from port to port pretty quickly and we have an early seating. Based on that, we opted for an inside cabin agian and save a little $$$. We'll be slumming in on the rails of the decks. :-)
Now, I'm not sure if I want a balcony or not. My post has confused my, but I hope it has helped you.