Well, my whole family and I eat eggs all the time. We have omelettes, scrambled eggs, breakfast pizza, "hootenanies", and bake countless desserts with eggs. We use them in almost every meal. More than 10 hens gives us a major surplus. They were just going bad. We have 6 laying hens right now and they go above and beyond our needs. Unless your family is huge, 10 laying hens should definitely keep you in supply. If you want to sell some (how many about will you want to sell per week?) you should only need maybe 10-15 more hens depending on the demand. And if you buy newly hatched chicks now, they won't lay until spring. And if you want eggs in the winter you'll have to use supplemental lighting in the coop. But that's hard on their reproductive cycle. You'll have to get new birds every 2 years or so.