Hi--just wanted to throw in another opinion on this. I think you have to decide what your family really likes to do in order to make this day fun. The time it takes to travel, check in, etc. takes up a lot of time. We just went in October, and did the
DCL excursion to Atlantis (the Atlantis beach day). The rooms were all booked for that weekend (we tried to call before, not just walk up) and at first were very disappointed b/c we wanted the waterslides, etc. However, as it turned out, I don't think we would've had time to enjoy them as much as we'd like.
Do your kids like the ocean? Ours love it, so they loved the clear water and we had our own beach chairs and towels set up for us (included in the excursion). By the time we got to the beach, it was 10:30 (the excursion meets at 9:15--don't forget to factor in all the travel time). We swam about 2 hours and the kids were hungry. We went to eat with our coupons included in the excursion (choice of outdoor restaurants--burgers, fries, etc.) and by the time we finished getting our food and eating it was at least 1:30 or 2:00. We then went through the Dig (underground acquarium -- awesome!) which was also included in the excursion. This lasted until 3:00 or 3:30 and we hiked it back to the taxi area (it takes a LONG time to walk around this resort!) . The boat now leaves Nassau at 5:00 PM (that's what it was on ours even though paperwork says 11--we were told they were changing that time permanently so they could get ready for the sail-away party --so you may want to make sure you are really going to be that late) so we had to go back anyway. We really enjoyed our day!
My point is, if your kids don't like salt water and only like pools, then maybe it is worth it for you to get a room. But if they like to just play and swim at a beach, it might be worth it to you to just do that. The whole day can easily slip by just going to the beach, and I would've been upset if I had spent that much money and didn't get to stay long. Just another side---
BTW, wave runners are offered and they were $30 for 15 minutes. (Also banana boats and jet skis--could probably get a better deal if you want to haggle!)
HTH!
Amy