Least expensive Programmable Thermostat for home with automatic vacation setting
I'm trying to find the least expensive home programmable thermostat that has a vacation setting, where you can drop the temperature to save heat while you're gone, but then you can have it come back up to your normal temp just before you return home.
For instance, if I'm going to be gone for 2 days and 6 hours, I want to use the vacation setting to keep the heat at maybe 55* for 2 days and 4 hours, and then return to 72* before I arrive home.
Anyone have any recommendations? I see that some $100+ Honeywell thermostats let you do that, but are there any that are less expensive that have that automated vacation setting?
And if the expensive Honeywell ones are my only option, where's the best place to get a good deal on them?
Thanks much for your help!