My hatchery birds are great. Morally I have a problem with the boys going through the grinder. I never thought before about what happens to the baby cockerels. I think non-hatchery birds are better taken care of. There are pros and cons to both I suppose. A lot of breeders have a limited number of birds, which results in line breeding and inbreeding, which in my opinion is not a good thing. I love all my birds regardless of where they came from.
I'm on the west side of the mountains and just put 8 eggs under my broody last weekend. I considered not doing it, but my rooster is very ill and I'm not sure he'll pull through. I wanted to hatch out a few more babies from him in the event we have to cull him. It looks like he was attacked by a predator and has bite marks on his neck. He's finally eating on his own, but has lost so much weight I'm not sure what his prognosis is at this point.
My broody is a large Black Copper Marans. She has hatched eggs before and is an excellent momma. We also have a barn and an enclosed coop, so the chickens can be protected regardless of the weather. They just survived three days of 50+ mile an hour winds, freezing temps and no power with out a single problem. I'm sure the broody will take care of the chicks regardless of the season. If she was a first time broody I'd probably not do it, or just give 3 or 4 eggs so it isn't as much work for her.