How many pairs of Aberdeen's to an Aviary

[Mattyboy]

It boggles my mind that Aberdeens are now listed for around $800 a pair.
I've been out of the hobby for a very long time. When I was most active, in the later 80s and early 90s, Aberdeens were a mid level bird, around the $35 mark in my neck of the woods. They were never anywhere as common as cutthroats, but there would usually be one or two birds available anytime you went to a dealer.
Their reputation was, 'easy to breed, as easy as a cutthroat, but not in fashion, not in high availability and not in high demand'.
Personally, I always liked the look of them. I think they look great. I will say though that the wild African birds I see on Youtube seem much more brightly feathered than our captive birds. Some of the wild African ones seem to have really vibrant red heads.
My question is this; given they've been a high value bird for a while now, and back in fashion in serious breeder circles, why hasn't their reputed ease of care and breeding resulted in a Silverbill-style resurrection? Are they no longer easy to breed due to genetic degradation and inbreeding? Or are they now on their way back to more reasonable prices and better availability?

[Craig52]

Pure birds are very hard to come by due to cross breeding with cut-throats to try to keep the species viable. But in saying that a few breeders who know what they are looking at have procured a few real Aberdeen's and are working with them although the gene pool is extremely low.