I would count on keeping them. Craigs list and farm stores are overloaded with posts and chickens.
Be responsible - don't hatch them if you don't have the room and resources for them 1st. If you sell some that's a bonus, but unless you do a presale and know there are takers, don't count on it. Where I live, the farm stores all buy from commercial hatcheries and still end up giving tons away at the end because not enough people buy them. They are more of a novelty to get people in the stores. But they do not buy from regular people because of disease etc.. Not to mention, they are already overloaded!