The drift is consistent if your doors aren't randomly open/closed. If I set my upstairs thermostat to 73˚F, the master bedroom with a closed door is always 71˚F

The drift is consistent if your doors aren't randomly open/closed. If I set my upstairs thermostat to 73˚F, the master bedroom with a closed door is always 71˚F. Downstairs thermostat is 70˚F, office is also 71˚F. We don't care about ±1˚F when working but do care when sleeping. Also, I get some measures being pointlessly precise just cause it lines up with the units, but they deliberately add a decimal place to the displays to support ˚C, even in countries where ˚C is default. The same display could support 0.5˚F increments, but they intentionally don't. > I still don't get why are you so fixated on 50°C. Why not 125°F? You'd get even more unused range if you go 0-125. The 0-125˚F range gets used though. Usually 0-100 though. It's perfect.