[Michlib-l] Books as SRP Prizes

Hello all, For those of you who give books as prizes, where do you source your bulk books from? I am looking for a way to be able to reward readers with a book without breaking the budget. Being in rural Michigan, I'm not sure if certain warehouse options would be worth the trip. I look forward to hearing how you all do your thing, and thanks! Kaitlin Matesich Youth Services Coordinator Benzie Shores District Library Frankfort, MI