Read and Return

I was in the Dayton airport yesterday and I purchased a book at the Paradies Shop.  When I was paying for the book the cashier said to me, "Don't forget to return it when you're done".  At which point I must have given her a puzzled look because she proceeded to tell me about the store's Read and Return Policy.  Any book that you purchase from the store can be returned after you are done reading it (as long as you have the receipt and it is within 6 months of purchase) and they will give you back half the cost of the book.  Books that are returned in good condition are resold at half their price and books in poor condition are given to local charities.  Apparently they have been doing this since 2003.  Are their other bookstores that do this?