I use eBay for books. Sellers pay a lower commission and a 3rd party seller is sending your book so you're supporting small business. The book is always cheaper

I use eBay for books. Sellers pay a lower commission and a 3rd party seller is sending your book so you're supporting small business. The book is always cheaper and even more so if you buy used. The only catch is that it takes longer than 1 day and that's a dealbreaker for many.