Only thing that would make sense to me is that he mounted his TV where the thermostat would be. I could see how a Nest would be useful here because you could us

Only thing that would make sense to me is that he mounted his TV where the thermostat would be. I could see how a Nest would be useful here because you could use their temperature sensors that you can place anywhere in the house to basically ignore the sensor in the nest unit. If that's not the case I would think he may be spending a bit more on AC and power than necessary.