I will pay $150 per kid for the three in elementary. They are in parochial school, but the fee is the same for public- they use the same book rental company. My high school senior will set me back $283 (63 does include her parking permit). That's $733 for the kids to set foot into the school before school supplies, year book, pictures, etc. Those all cost more! (We spent $300 on school supplies because of those LISTS already!).
I grew up on the west coast and NEVER heard of book rentals until we moved here 15 years ago. It is incredible- and the books are the same old "old" ones- written in (No, you are not supposed to!), torn, missing pages, etc. If you complain they will occassionally try and find a book in better condition. I actually bought a new math book for my oldest DD one year becaus hers was unreadable. Ugh!