However, nobody will be paying the RRP. Amazon Japan will heavily discount the price over the course of a few weeks, and all the other place in Japan that are taking orders have already applied much the same discount. Or at least nobody needs to pay RRP; anyone who waits for local retailers to stock these things will of course pay a higher price than those buying directly from Japan (higher even than adding the cost of postage from Japan), but that's a choice.

I don't think there is any special difficulty in making them, though. Plenty of other manufacturers have been making similar toys with parts the sizes we're seeing here for quite some time without issue, although yes, they too tend to have prices that some people say are high.

The price and value are all subjective judgement calls, right or wrong for us alone in our own heads, and really the only way to say whether it was "right" or "wrong" as a general thing is to look at the sales in the end. And these will, I believe, sell out, which would be as close to saying the price wasn't actually wrong (not the same as saying it was right) as we can reasonably get.