First, I always buy my chicks as babies and have never thought too much about hatching any myself? But, someone just gave me a Hova-Bator 1582 Thermal Air incubator that has only been used once to hatch some duck eggs. Soooooo, now I'm thinking maybe hatching some eggs might be kind of fun. This model does not have a fan or auto egg turner and I don't want to spend a lot of money on my "free" incubator. So, I'm wondering what you think would be the most important addition - a fan or a egg turner?