I am in the market for a good thermostat. I have been looking at Helix, Herpstat, and Vivarium 200. I know that they are all practically the same in features and are all reliable. I have read what people have to say and I am happy with what I have heard about all 3. I am pretty fortunate with the fact that ARS Caging is 20 miles from me and they sale all the thermostats.
I have seen various ads throughout the reptile forums out there where people are selling used thermostats and at a pretty good price. Would you prefer to buy a new one or a used one if you could save a good amount of money?