Electronic City Inc. via eBay offers the 3rd-generation Nest Learning Thermostat, model no. T3007ES, for $199.99 with free shipping. That's $7 under our Cyber Monday mention (although that deal included a $50 gift card) and the lowest outright price we've see. (It's also the best deal now by $27.) It improves on its predecessor with a slimmer profile and bigger display. It "learns" how you set your home's temperature, downloads data, and can be controlled from your smartphone via WiFi. Note that not all home HVACs are Nest-compatible.