About colors and prices
Different colours come with different prices (just like in Japan and Europe).
Reds and creams (light red) are cheaper because of their bigger population.
Black & tan, sesame and brindle are uncommon, almost impossible to find outside of Japan... high quality sesames are not for sale in Japan because the breeders keep them.
Whites are rare, a few are living in Europe, hence the price is relatively high.