Got my Complete Sherlock Holmes in the Library basement for 50 cents...and it came with a napkin (clean) from a restaurant named for the great detective himself...
You can get a whole bag of books for $5.00...and if you buy the right one, it might have a prize in the middle...
If you buy $10.00 worth of books you get a library coffee mug...or a t-shirt...
No coffee, though.
But if you like, I can charge you for the right to stand on the premises!!