I have heard something similar from a couple of people I met at shows. They said specifically breeding AlbinoXAlbino increases the odds of genetic defects like missing eyes and such. I've never heard that here or anywhere else. And I'd trust to people here more than anywhere.

However, it does beg the question: why do recessives retain their market value?

I understand recessives are hard to breed out at the beginning, but once you get 2 visuals you can get the visual 100% in all the babies. So why haven't Pieds and Albinos gone down in price?