Any oriental porn fan will tell you that the reason why it is so crazy hard to find uncensored Japanese porn is because it is in fact illegal In Japan to release media with genitals visible without pixelation.
Ah, but then how can there be an entire site in Jav HD with an all Japanese cast and all of the content is hardcore and uncensored. The answer is because it is in fact not produced in Japan but in the US.
This should give you a bit of an appreciation for just how much effort these guys put into sourcing actors and actresses to bring you something this rare.
That does indeed mean that it is more pricey than most other mainstream genres. Usually that is, because right now you can get up to 81% discount from JAV HD!