Never name anything you intend to eat. If they're just egg producers then I guess its OK to name them, but I was never that attached to our hens.
Have fun with your chooks ... the cost per egg will drop, but by the time you factor in the costs of chook food (you'll need to supplement the scraps you give them) and the time associated with cleaning out chook houses and collecting eggs, the cost per egg will never be zero. The benefit is fresh eggs, scrap disposal and a bit of entertainment value.
It does get a little frustrating when they go off the lay, but still require care and feed