Like a lot of things, I think free ranging is a personal choice, albeit one you should make after careful consideration of the pros and cons. When I got my first flock just over a year ago, there was no other choice than free range as I am an animal loving vegetarian that can't stand the thought of animals in cages and pens. The starting chooks were all POL and bought from a place where they were kept in large rooms. When they hit the farm they were very scared at first, but soon realized the fun they could have. They started foraiging in their 10 x 20m camp for bugs, scratching and running. It warmed my heart. Wonderful as it might be, there are also drawbacks to free-ranging your flock. They will be more prone to attack by predators (especially the arial kind by day) and airborne diseases as well, especially if you live in a windy and / or open area frequented by other wild birds. They could also become flea-infested more easily. Egg thiefs might also find their way into the coop. But the look of sheer wonder on their faces when I open them up every mornings is just priceless. And to have them come running when I have treats can't be replaced.