I think it depends on your area. Books can go for anywhere between .25-1.00 for hardcover and paperbacks are .25-.50. If it were me visiting your sale, I'd rather be able to buy books separately than in a bundle. People might have some within a bundle and are reluctant to ask about breaking up a bunch. That's just me. Went to a sale a couple weeks ago, she had some wonderful gift worthy hardcover and board books, and some with pages that needed fixing. I asked how much and she said a quarter each. I think I bought 3/4's of her books.
Even the ones with torn pages.
As I said it depends on your area. And how committed you are to getting rid of everything.