I agree, Trip. Normally, we'd much rather have a table of 6, which we've found perfect for us (maybe 8 at the most) - bigger is not better as you just can't talk to everyone.
But in our case on this cruise, the booth worked out well because of our soon-to-be 5-year old grandson being with us. We figured it was better since there were no other small children at the late dining and this way he didn't interfere with others. We weren't sure how he would do, but he did great and it wouldn't have been a problem.