Price are insane, but only for Eversource power customers. Possibly only CT, I'm not sure if it works in MA or other states. Prices are subsidized via the conservation and load management fund on your bill... you've already paid for this. Ends December 1st.
Confirmation of electrical service via address and name on bill is required. Turn off ad blockers to get through the check out stage, or it may just hang.
You can buy up to 3 per account per year. If you don't need 3, buy extra and Ebay them (then send me a tip!). I bought 2 extra Ecobee 3 Lites to resell, and 1 regular Nest... so I'll make money and get a new thermostat.
Google Nest 3rd Gen learning Thermostat $99.
Regular Nest $29.
Ecobee 3 Lite $39.
Emerson Sensi $1.
Honeywell Home Wifi Smart Color $19.