The Nest Smart Thermostat is on sale for $169.15 as part of Amazon’s Cyber Monday deals. This is the new lowest price that this thermostat has ever been. I own this thermostat and have been very happy with it. You can control it with Alexa or through the mobile app. I’d probably buy the ecobee4 Smart Thermostat, which is still on sale for $199.00, if I were in the market for a new thermostat, but you can’t beat this price for the Nest.