The book is maybe $65 because of a random price spike, it was $30 not that long ago, it'll be under $40 again soon. I bet most of you have paid two digits more than that for Apple hardware recently. It's not rare and collectible, it's just a really solid book on virtual machine design that has regrettably gone out of print.
If you're going to engage in such shady shenanigans, at least save it for something actually rare/pricey.
The original lambda papers might be on your want-to-read list, too: http://library.readscheme.org/page1.html; I liked the AIM-453 TR, "The Art of the Interpreter, or, The Modularity Complex" by G. Steele and G. Sussman.
It is really good, describing several different architectures for computation. Different designs for virtual machines, if you will. It isn't limited to Lisp, either -- Prolog and a couple other language families are covered.
I'm about to build myself a small lisp related library, starting with the Art of the MOP and LiSP, so I'd love to know more about the books in this list.