Originally Posted by l_macd
How many times on average does a physical book get borrowed before libraries have to invest in a new copy?
For HarperCollins books, libraries have to destroy all copies that have been loaned out 26 times. Failure to do so will incur the wrath of HC. At this point, HC will send in their fire department who'll do a Fahrenheit 451 on all HC books; regardless of loan status. It's a brave new world we live in.