I'm about to buy a Hova-bator incubator. I had one as a kid. I'm sure it was a still air one but I had great luck with it. We had chicks all the time. This time I thought I'd buy a forced air one but I was wondering about the electronic thermostat. Is it worth spending the extra money for that? Any words of wisdom on incubators. I want to spend around $100 or less. Thanks.