Paper Should Cost So Much Less Than This

College textbook pricing defies logic.

Exhibit A: Dinosaurs: The Textbook
1. This book is used.
2. This book is 1/2 inch thick.
3. This book is paperback.

And yet it costs . . . $72 dollars.

I will be getting, oh, about $15 bucks for it at the end of the quarter when I sell it back. Or less.

Does this make sense at all?