Libraries are not always easy to get to, have restricted opening hours, often won't have the latest books available, impose fees if you don't return the book wi

Libraries are not always easy to get to, have restricted opening hours, often won't have the latest books available, impose fees if you don't return the book within a certain period of time, can only supply a very limited number of copies of each title at one time, and (as pointed out elsewhere) might require you to be a tax-paying local resident. Libraries have been pretty solidly proven not to negatively affect the market in new books for all these, and possibly more, reasons. Kindle Unlimited is a whole other ballgame.