It seems to me that any time you try to make a profit off of living creatures, the only way to do it is on such a huge economy of scale that they cease to "be" living creatures and become a commodity like anything else. Ultimately this can lead to taking shortcuts, like it or not, that can compromise their quality of life. Not to say that farming and ranching are wrong - I eat meat and understand that in my community I can't grow my own - but I think it would be difficult to combine a pleasurable hobby involving pets with raising livestock for a living. At some point you have to decide which camp you're in, and the business side involves a lot of work and heartache; I'd rather spoil the 4 hens we have and know that they're happy pets who happen to give me fresher, healthier eggs once in a while. Plus, the moment you try to make a hobby pay its keep, it becomes work, and ceases to be a pleasurable hobby at all (in my experience). Just my two cents.