Yes, and I used to visit used bookstores in most every city that business travel brought me to. I make an annual pilgrimage to their main store on NW Highway in Dallas.
I go by HPBs on a regular basis, and usually enjoy searching for bargains.
Certain selections are mostly forgotten by the young stores clerks, and they often wind up in the clearance section.
What kind of really good books often wind up in the clearance section?