Instruct: Classify Amazon reviews into positive or negative sentiment
Query: what a ripoff

for far less, you can get a ebook reader with hugely more battery power, that will read most formats that ebooks are available in, and that *you* control, not amazon through their wireless connection that lets them control what you can and can't read, remember, with the kindle, you're renting books from amazon, not owning something you can do whatever you want to with.