Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Thumbs down Amazon...not worth advertising.

I rarely buy anything without comparing with Amazon's price. There's no telling how much money I've spent at Amazon. Today is the first day that I have questioned this company. The Kindle sale wasn't worth advertising because it was a mirage for 99% of us out there. I want my time back. That was absurd. Don't toy with your customer loyalty next time Amazon.