Instruct: Classify a given review into positive or negative sentiment.
Query: Way to expensive! It isn't Gold you know

I have been using this product in my hoover floormate machine for years. The smell seems fine to me. However, I cannot believe the price on this product. I can buy it elsewhere for around $7.00. Who would spend $50.00 for this product? Are you nuts??? I buy a lot of stuff on Amazon, but cannot believe this.