We have reviewed the Best Programmable Thermostat Under $50 dollars. Check out our comparisons of the best selling programmable thermostats under $50 dollars. The Nest thermostats have a great demand but they are over $50 dollars. Our readers have asked us to do a review of all the high quality programmable thermostats that cost around $50. Fortunately, there are other manufactures who make high quality affordable programmable thermostats for 50 dollars. As a general rule, we only review thermostats that have received more than 100+ positive feedback on various shopping sites.