You think we hatch eggs for monetary gain? Bwa-ha-ha!
Straight-runs at TSC can go for fifty cents apiece if you go at the right time--far less than letting a hen go broody will cost in eggs and feed! And if my hens are low in feed in winter--then I, as an animal owner, have a serious problem.
Nope, I'm a hobby-putterer, and I'm willing to bet the OP is as well. I just like watching a hen run around with chicks.