Got you.
Never realised that they did that.
I suppose when it comes to selling your stock, hybrids are more popular and sell better these days than the pure breed utilities. You would maybe need to advertise your stock well and really push their good points/merits of keeping them over hybrids eg. lay for a longer period of time, longer lived
My father's Wyandottes lay a bit better than my RIR's but my Rhodies lay a bit bigger eggs with slightly darker shells.