Are the 5 night, double dip cruises worth $400 more total than a 4 night? Is $1852 considered a good price for 2A, 1C? I'm new to all this. We'd love to do a 7 night but it's $1K more than a 5 night. Our dates are flexible. It looks like January 3rd is the least expensive right now. Is that a good time to go? Thanks for any help.