Yeah, my library does them thrice yearly so they have a wide selection... though often by the time I get there, they're fairly picked over. I tend to go the last day of the sale where they've got the big bag o' books for five bucks so I don't feel guilty for buying even more to add to my shelves. Because I, too, have the Gollum grasping hand and the impulse inside that yearns for BOOOOOOOOOOOOOOOOOKSSSSSSSSSS.