Years ago, nearly all food was included except alcoholic beverages, as is nightly entertainment. It's relatively inexpensive. You just stay in one room, as op

Years ago, nearly all food was included except alcoholic beverages, as is nightly entertainment. It's relatively inexpensive. You just stay in one room, as opposed to going from one hotel room to another to cover many destinations. It doesn't take much planning - just select a line, ship, and itinerary, and you're set. Plus, I like being in the middle of the water. All in all, a good value. Some of this has been diminished in recent years as the big lines have a bunch of on-board add-ons like extra restaurants that charge a fee. It's not for everybody but there is definitely appeal, as shown by the fact that it's a large and growing business.