Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Inflated, inaccurate pricing.

I found most prices for books I own (or was looking to buy) not to be accurate. The Overstreet price guide is much more realistic when you go to buy and sell (especially when you sell!). I literally threw this guide away and bought the Overstreet. Overstreet is not 100% accurate, but it is much,much closer to the truth. This industry has enough problems without complicating it more with several different price guides each touting completely different prices...