My mother in law is planning on getting me an incubator, and wanted to know just how important adding on an automatic egg turner is? She feels if it isn't that important, she'd rather get me some stuff for the brooder instead. Truth is, I honestly don't know. I really don't plan on ever having more than a dozen or so eggs in the incubator at once. How difficult is it to manually turn? I have a little 3-egg incubator, but I've never actually used it before. She's planning on getting a GQF Hova-Bator Thermal Air Flow Egg Incubator.