The only thing that's preventing couples from taking a cruising honeymoon is the fear that it might be too expensive. On the contrary there are packages that are reasonably priced. Ships as well as destination hotels often give discounts to newlyweds who get an entire package.
Remember this is a once in a lifetime experience that would be cost effective if you know how to choose affordable cruising packages. If you add up all the expenses one by one then it could really cost a lot. However, if you get an all-inclusive honeymoon package then you would be paying for a trip that is a lot cheaper and more convenient for both of you.
When you are on a cruise, you only have eyes for each other and you wouldn't have the time to think of where to eat or where to stay when the ship drops anchor somewhere. An all-inclusive travel would mean somebody else would take care of your meals and accommodation on the ship. You can also pay extra for wonderful shore tours, which would be memorable for you and your spouse.
Going on a honeymoon would give you the opportunity to travel without packing and unpacking your suitcase. After several months of being subjected to a lot of stress while preparing for your wedding, you need this chance to unwind with no worries at all. Isn't that convenient?