Albinism is probably the most common mutation in the animals world, sometimes they become commercially important (rats and mice come to mind), other times just an oddity that people buy for "something different" (fish, reptiles, amphibians, cage birds). I would surmise that albino chickens (and turkeys) pop up regularly in commercial operations and they would be made available to researchers at universities. There is probably old scientific papers about them and then they were abandoned as not viable commercially.Well I think it's very interesting to see this happening. I too am wondering how or if they will survive long term. It could become the next "hot" chicken color on the market, if it would ever reach the market.
Personally, I love some albino fish and reptiles, because it accentuates other colors (google images for "fundulopanchax gardneri albino" for an example) or patterns in their fins/scales (catfish come to mind). Albino cage birds seem sort of pointless to me, I like the colors and patterns on a parakeet, why have one that is completely white? I tend to favor any color in poultry over white, white just seems so "ordinary" to me, having seen so many commercial flocks, almost all white. So, all you have additional in albinos is red eyes and super pale beaks and legs.
They could get some attention from the curiosity seekers, or hunters of the ultra-rare (it's possible that no albino Orpintons have ever existed before). I don't see them getting generally popular, but I could be wrong.