Following this thread because I have the very same question.
One of the things that I HATED about the Fantasy was that top deck--never enough chairs in the right places during the day, never enough room at any of the deck parties. Very Disney park-like in that if you don't want to spend half your vacation arriving ridiculously early to get your place, forget a nice experience. And due to the crowds that experience often meant only 2 chairs at the pool for our family of 4 or no ability to see what was going on at deck parties--even trying to watch the screen at times was interrupted by rude passengers who felt the need to video EVERYTHING, so every photo of the deck party events has someone's arm and GoPro in it. Then there's also the folks that do arrive hours early, to their credit, but they save 10 seats and the other 9 folks show up just as the show is starting, trampling on your kids to get to their prime spot for GoProing. My 8 year old was so happy the entire SWDAS, and couldn't wait to go to that evening's deck party. We arrived a good 45 minutes early. As he walked out on deck and saw the crowd, his face fell and immediately turned around, asking to go to bed. It broke my heart. Now, we did have the bad luck of very windy weather, which meant going up one deck and looking down on the deck party was torture. But then doesn't that just emphasize the need for your own protected balcony in bad weather? And the truth is, even with good weather, I simply do not want to have to get up at 6 am to save seats if we aren't going to arrive at Tracy Arm or the Hubbard Glacier until 8 am. Or not be able to enjoy Palo brunch or a spa appointment in the morning because we are arriving at 12 pm and I need to be on deck by 10 am to secure my spot.
On the other hand, the average balcony is only going to seat 2 of us, so do the other 2 stand the whole time? Unless we pony up for a larger balcony, don't we have to go up on deck anyway? At that point the balcony's value is limited to unobstructed photos and cover in the event of rain/wind.
I am really torn on this one. I priced out a bunch of categories, and the largest jump is between 9A and 5C--that's $3483 to get a balcony that only 2 of us can sit on at a time anyway. Sigh. Thanks for letting me vent.