Instruct: Classify the given review as either positive or negative.
Query: Kindle Cost

I just want to start out by saying that I love this author and the books are a lot of fun- so this review is more in frustration of the cost! Does anyone else find it crazy that the price of the Kindle version of these books are so high, considering the fact that they are electronic AND the cost of the physical copies of the book are so low??!!