we are planning another boat ride. 12 days in nov for 3 persons. we plan to book a 2 bedroom cabin on royal caribbean. the prices are all over the place, however, about 5 or 6 booking agents are offering the same rock bottom price. question is, does the price go down some time frame before the boat goes to sea? we just came back from a 12 night cruise, and about a third of the cabins were vacant.