Paperback books wear out more quickly than hardcover books do, but paperback books cost much less
Ttherefore, users of public libraries would be better served if public libraries bought only paperback books, since by so doing these libraries could increase the number of new book titles added to their collections without increasing their budgets
Library users as a group depend on their public library for access to a wide variety of up-to-date reference books that are published in hardcover only.