But did you take into account the longer fur?
I'm going to guess that with the limited gene pool you would have to line breed more, which would lead to the compounding of genetic traits, including malo.
I seriously doubt that anyone in the US would pay $4000 for them anyway. And they very well may have a contract stating that you can not sell them back into the US for X amount of years. Such a thing is not unheard of and stipulation sales are very common in the dog world, especially among high quality breeders and showers.