A number of things should be considered when trying to decide which way to go. Recently, I wanted to book a 14 day but the cabin I wanted was not showing as available however, it was showing available for two 7 day cruises. I looked at the price for the two 7 day cruises versus booking the 14 day cruise and the price difference was just over $300. Paying $300 more and losing $50 shareholder and $50 military made it an easy choice. Research, research, research.