A furry "rare" book?
Amazon.com lists the price for a used copy of out-of-print short-story anthology "Best in Show: Fifteen Years of Outstanding Furry Fiction" as $348.33 – plus $3.99 shipping.
"Best in Show" won two Ursa Major awards for 2003, for Best Anthropomorphic Other Literary Work and Best Anthropomorphic Published Illustration.
Ed: The anthology was reprinted without interior illustrations as "Furry!: The World's Best Anthropomorphic Fiction", currently available for a far more reasonable $6.09.