Instruct: Classify Amazon reviews into positive or negative sentiment
Query: way more expensive than it's worth

This book is way more expensive than it's worth. It's the shortest book- more of a pamphlet really. Almost $30 for a book that's just over 100 pages, with one-inch margins??? Absolutely ridiculous. Someone's making a fortune off of all us poor college kids who need to read it for school. Wish I didn't need it for school, or it would be going right back.