I booked through RCI for Nov. 07 sail back in March of 07. True to their word, each time I checked online and saw the price had gone down, I called and they immediately lowered by cost and sent new confirmation. From Mar. to Nov. it went down 3 times saving about $300 per person. You have to call them - they obviously won't call you. My final payment is due 9/9/07 and after that I think it is set - nothing will change. Good luck!