To me this is more about our end cost so I'm totally going to avoid the gold vs. crap debate about the quality of Yamato's output...
The way I see it, there are a variety of factors that leads to the end price that a consumer pays for these items - final destination, import cost, manufacture cost, taxes, retailer, etc. Most of it is just unavoidable, so it's just a fact of life that Consumer A will pay $100 and Consumer B pays $130 for the same item.
However, one thing that I do see that has always bothered my is the size of Yamato's packaging. There are surely a number of ways that it can be reduced, and yet they continue to create humongous packaging that as far as I can tell, adds cost to the end price that a consumer pays.
Not to mention that from a business standpoint, they're making it difficult to buy more of their toys by virtue of them taking up so much space, especially in space-starved Japan where room is a premium.
I do understand and appreciate that they are trying to create a desirable piece of packaging to enhance the toy's value, but it's personally not worth the extra cost to me.
Reduce the size of the packaging and the end costs for these items for everyone will drop.