Great place for used movies and reference books but their hobby and collectible selection is funny. They use AbeBooks for their pricing of rare items and it's often laughable....I've seen books worth $5 (in mint condition) in horrible shape sitting in their glass cabinets for $30-40. And books worth $30-50 can be found on the shelf for half price. No consistency.
The worst part of HPB are the employees, many of whom are hippie throwbacks who are clueless at best and downright rude at worst.