The Nest Thermostat 3rd generation is on sale for $139 right now with free shipping. I believe this is the lowest price we have seen on this and it does come in black, silver, brass or copper. I saw this in several Black Friday ads for $179.
I am getting this for our house.
This thermostat learns the temperatures you like and will program itself to keep your home at the right setting. You can adjust the temperature from your phone- so turn the heat on as you are heading home or whatever. It turns itself off when you aren’t home so you aren’t wasting heat or air in an empty house.
This is so much prettier than our old ugly thermostats too. If you have Alexa this is compatible.