I got my first chickens spring of last year, so I'm not all that experienced in the chicken world. I know I want to add more chickens to the farm this year and I'm trying to figure out if I should just mail order more chicks and hope I get the breeds I want, or if I should learn to incubate eggs and hatch my own. Is it cost effective to hatch? Maybe that's not a question I should ask What factors did you consider before you decided to start incubating and hatching eggs? Also, is buying a used incubator asking for problems? I'm sure it's like anything else and buyer beware, but are there hygiene issues to be considered?