Allow me to help you understand the reasoning a little bit.
First off, around here anything at the grocery store labeled "pastured" really has no usefully defined meaning. Nor does "cage free" or "free range." They may be what one might envision for those words, but there is no guarantee that they will be.
I have 4 hens. They are not there to save me money. I expect improved nutrition from them compared to what I buy from the grocery store ... but only marginally. I do expect them to be more fresh than what I can buy at a grocery store.
My primary purpose for having them is for the kids to have some exposure the source of their food. (I see a small element as self sufficiency in them. We've seen supply chain interruptions happen. Having a buffer against that is useful.) It's the same reason I garden. I don't grow enough to live off of. Heck, I'm in a constant battle with groundhogs and raccoons. Still, I can guarantee you that my kids would eat less vegetables if they didn't have the exposure of eating them fresh from the garden. Garden fresh asparagus and brussels sprouts are the best! My kids love brussells sprouts. Here in suburbia, if you asked all those graduating high school what the source of all purpose flour is, I would bet the majority could not tell you 'wheat.'
The chickens also function as pets for the kids. They enjoy playing with them. Chickens are a bit of a lesson in responsibility. And, they are among the easiest to care for animals I can think of.
Yes, they sure are expensive. Again, I see it like gardening. The eggs are like
the $64 tomato.
I live on a 1/2 acre suburban lot. Local ordinances prohibit roosters, but even if they did not, it would be impractical to keep one. I'm trying to give the chickens the best life I can give them .... but they exist for me. I would love to let them free range all the time. But, it just is not practical. I would love a better, more natural food than all-flock pellets. But, again, it just isn't practical. I can guarantee you that my chickens are happier than those in most any commercial chicken farm.
I enjoy these threads so much, because I like to envision what other options may become practical at some point.