Bee, when you say you get replacements, what do you do? Eggs, chicks, what source, etc?
I just source flocks or hatcheries for laying/DP birds and let them do what they do, culling for laying, health, disposition. I keep those who lay and reproduce on my husbandry methods and cull those that do not. When I want another breed or type, I order some chicks to add to my original breeds.
You see, I'm not breeding a certain breed but I am always looking for a certain type. But I am much more casual about it than the breeder guys because I'm only concerned with if the flock earns their keep. If they earn their keep and are pretty self-sustaining, they remain in my flock. I'm not a perfectionist nor are my standards all that rigorous except performance and hardiness. Those I have to have.
WV has literally NO breeders of good, dual purpose breeds...do a Google and you will see. I've perused every livestock bulletin available in the state and, if there are any reputable breeders, they sure aren't making themselves available. Out here in the hills folks are pretty much like me...chickens are food and that's about it. If you can develop a flock that makes more food, great! If they can make more food for longer than just 2 years, even better! If you can avoid having to buy new stock all the time, the best!
We take a very casual, easy view of poultry here and I don't know of any shows in the state, even. No breeders, no shows, no SOP dedicated people at all and I won't travel too far to get better stock because that just defeats the purpose of me having the chickens in the first place...to save me money.
In the past 7 years I've only ordered chicks twice. The first time was pretty successful and I kept many of those for several years, the second time I was about 6 mo. into the newer bunch when I rehomed my whole flock to other places, so I didn't get to see how that second infusion of chicks did but I have a few of them now, again, and I'm not impressed.