If one cruise is 7 days and one is 14 days, how is the price roughly the same?
I'd do the 14 days. If I had to travel a long distance (Europe, Tahiti, etc.) that would be alot of traveling for a 7 day cruise.
I see it as comparing flying economy class as compared to first class on an airplane. Sure, you may have more room (on a airplane) but can it be that much better to justify the additional cost?