Not sure if its a slick deal but Columbia gas of Ohio Customers can get a nest Thermostat 3rd gen for $124 from Nest.com using a code you got in the email.
If you don't have the email from Columbia gas of Ohio, you can go to their website, log into your account and order the :
nest thermostat 3rd gen - $124
ECOBEE3 LITE (INCENTED) - $74
NEST THERMOSTAT E (INCENTED) - $94
ECOBEE4 (INCENTED) - $124
NEST THERMOSTAT E - 2 PACK (INCENTED) - $148
I have one code that I can share. You can use this code directly on Nest.com