Just a note: We have a family of 5 including a 2 year old. Even though we qualify for a single room, I have resigned myself to the fact that we are a "two room" family from here on out. In the same light, we resign ourselves that airfare anywhere will be over $1200.0.
The flip side to the financial predicament is that there is so much more room, and we would not have it any other way. Our vacations have become more relaxed with the extra space of two rooms (everyone likes the space), the kids run around both rooms, but all is less stressed. I think that if you can get over the cost, you'll agree with the space.
We had connecting rooms at Contemporary, Hard Rock, and AKL at Disney. The connecting rooms at AKL had a hallway that somewhat cut into the useable space (made it feel like two separate rooms), but the layout for the Contemporary (close to 900 ft of space), and the HardRock (no connecting hall - rooms that open into each other), made the space very convenient, just as good as - if not better than a suite.