Hi meb51,
We will be taking our third
DCL trip in a few weeks. On both of the previous trips we have had the cat 4 del. family stateroom and we are booked there again. I was just doing some comparing, thinking about next year already, and I'm pretty sure we'll do what we have to to stay in a Cat 4 again. We are a family of five and have found the room to be awesome. Plenty of space, we are unpackers, and have found we can unpack eveything, stow the suitcases and move around freely. The split bath in a must, espeically with a teenaged daughter.
We also like being on deck 8, very quick flight up the stairs to the pools, drink station and top siders. Many times we would bring breakfast trays down and eat on the veranda.
Speaking of which, that is the clincher for us! We love the veranda. It is just soooooo nice to sit out there in the morning and have coffee, or in the evening and watch the stars. It is a nice private place to read and relax, plus the view has always been pretty nice.
Anyway, that's our 2 cents. I think in my comparison you'd have to do a category 9, 10 or 11 (two rooms) to make out with some savings. AGain, we've decided that the veranda is one of the extra worth paying for. Oh, and we didn't spend tons of time in the room, but there were occasional quiet times that it was nice to just kick back and relax in the room, while watching the ocean go by.
Good luck.