You can also rent directly from an owner, which is generally a little cheaper. Of course, tha it also a bit more risky as you are dealing directly with one person. You never know.
We are now owners, but I used to rent from someone that I found here on the Dis under the rent/trade board. She charged 11/pt at the time. That was a few years ago. We rented from her several times. Once you find someone to rent from, keep using them directly.