We are not the national archives, comparing us to a library is insulting, we don't want your old books just because you don't.
We are not a bank, like any other business we have bills to pay.
We are not a garage sale, rummage sale or flea market - we do not barter on the prices of our books any more than the landlord does on our rent.
We don't care that McDonald's was open at 6 and Walmart at 8 just because you want a check romance novel with your morning coffee doesn't mean anyone else does, and one sale does not pay for two hours of wasted utilities (usually).
Yes, that's the same book you have at home but what makes you think we'd want or need to buy another one?
It can be the greatest book you ever read in your life but if we don't think we can sell it then we won't buy it.
Your book looks like a dog ate it, ask yourself - would you buy this book? Then why would we? (refer to 1,2,3).
Yes, a "used book store" as it says on the big sign predominantly sells "used books", this is why that copy of Harry Potter is $7.50 and not $39.95.
No matter how mint condition it is, your 30 volume set of Funk & Wagnalls' Encyclopedia is completely worthless anywhere in North America, no not even as a donation (waves).
We give store credit and no we won't make an exception in your case no matter how small the amount of how much you need the money - we do too.
You may consider actually looking at the shelves before declaring how other stores are in alphabetical order and not ours.
We offer store credit for books 2003 and newer. Yes ma'am the books on our shelves are older than 2003. (blank stare).
Contrary to what television might teach you "excellent" condition and "pretty good" condition are not the same.
Yes Sir $7.50 is the price. Well Sir, when the landlord starts charging $10 a month for rent and $5 a month for utilities then I'll start charging $2 for a book.