You could have an argument with Gigan, and even Kiryu and that's a maybe since it's a limited production run and economics says things produced in smaller numbers are always going to be more expensive, but where do you get at King Ghidorah being $75?
Gamera does seem closer to $75, but I don't think a price like $85 is unfair either looking at all the accessories it comes with.
On a side note, seeing the DC Figuarts for Injustice, I'm really hoping they make a Figuarts Deathstroke... All of Mattel's figures are either undersized, oversized or have the same crappy T-Crotches Mattel's been known for.