I haven't personally ordered from them, but have looked into it.
Their birds and hatching eggs are expensive. But they seem to specialize in importing "rare" breeds (rare as in ones that aren't avaliable in the states, or difficult to find)
Importing birds is very difficult, expensive, and risky. It doesn't always work out.
I have birds from other hatcheries that I would not have without people like them importing.
If a breed isn't popular enough, the hatcheries most of us buy from won't pick it up.
If the breed isn't common enough, they won't end up in stores as the chicks will be too expensive.