Shipboard Library
One of the nicer surprises about The World was the ship's library, a large and comfortable space with a fine collection of books. I expected a closet of best-sellers and travel guides, but this was clearly selected by someone who reads. There's a complete run of Everyman's Library, a fine assortment of modern fiction, and a very good bookcase of recent biography. Plenty of best-sellers and literary hits, of course, but there were also a surprising number of fine books by writers who aren't terribly well known.
This is, I think, an example of thinking a concept through. If you're planning a floating apartment building that sails 'round the globe, bookstores are going to be a problem. Amazon is going to be a problem, too, because you need to have books shipped ahead to where you're going to be later, and if they're late, the books have to chase you. Since the passengers have already paid handsomely for their apartments, the ship owners don't need to maximize revenue from every square foot of deck space. And, since a big ship necessarily employs a lot of people, you're bound to find someone who can double as a resident book critic if you look hard.