Don't forget just because the eggs might come from birds from Foley doesn't mean they are Foley lines once someone else gets them. Everyone breeds for different things. Foleys breeders will be top notch and improve all the time. I've got birds from them only now but can't say they are Foley lines. They came from him but are not near the quality of birds he keeps for breeding since he hatches so many and culls to the best few.
You are completely right. I have been looking at everyones pictures and some are better than others. And I have also asked to see how long they have had them and if they came directly from Foley.