Would you like to be able to purchase The Only True God in paperback? Well, if so, then here's what you need to do.
If the first print run (hardcover) sells out within the first three years, the publisher will follow up with a paperback edition, which will of course be in a price range that individuals and not just institutions can afford.
And so why not recommend that your local library (whether public or university) purchase the book? Most libraries welcome suggestions for purchases, and they usually get the hardcover edition anyway.
If enough of you do that, before you know it, there should be a paperback edition of the book available for you to buy, and have a copy of your very own.