I really lucked out when I found this item in a Goodwill store. It is a current textbook, and those are going to be some of the biggest money makers you can find. I shipped it off in a batch of item to the Amazon fulfillment center. I'm in the Milwaukee area so it routed my boxes to Joliet IL which took only about 2 days. I had only paid $3 for this item but was able to list it for $73.78! It sold within a day of arrival and after fees I received $58.65. Yeah, Amazon takes a lot of fees! But I cleared $55.65. Keep in mind that textbooks sell best in the month or two before school starts. I sold this one in July. Textbooks keep their value until a new edition comes out, which is usually every 2-3 years. Then the old edition drops dramatically in value and sales rank. But this just goes to show that there is money to be made.