I guess it depends how much you like paperbacks but they were fairly good at getting me to buy hardcovers because I wanted something right when it came out and

I guess it depends how much you like paperbacks but they were fairly good at getting me to buy hardcovers because I wanted something right when it came out and didn't want to wait for a paperback. At $40/hardcover $400 is less than a book a month. A KU subscription is less money flowing into the system than someone buying 1 hardcover per quarter.