Instruct: Classify an Amazon review into positive or negative sentiment.
Query: Overpriced. Especially for the item that was supposed to come with the phone

Title says it all.Cisco is selling this adapter separately from their phones. They still need this to operate. Phones do have POE (power over Ethernet) but that is unreliable at best.What would you say if you bought a car and dealer told you that now, you need to buy tires for that car if you want to drive it off the lot?And please, 10 dollars for this!? They make them for bellow a dollar. Rip.Off.