Bookstore owner: Consumers should buy books only from an independent bookstore, not from a bookstore that belongs to a bookstore chain. An independent bookstore tends to carry a much wider variety of books than does a chain bookstore
because chains often threaten the existence of independent bookstores, they tend to reduce the variety of books available to consumers.
The best interest of the bookselling business is not served when consumers purchase books from businesses whose existence tends to reduce the variety of books available to consumers.