Amazon has Nest Learning Thermostat 1st Generation (T100577) for $179
. Shipping is free.
This is the original Nest. It's beautiful, simple to use, can be controlled from your smartphone and works in about 75 percent of homes
Auto-Schedule - Nest remembers the temperatures you like and programs itself
Auto-Away - Nest saves energy by automatically turning itself down when you're away
Remote Control - Connect Nest to Wi-Fi to control it from your smartphone, laptop or tablet
Energy History - See how much energy you've used and what affects your energy use most