@sailormoonstars I really don't think they are taking advantage of the buyers at NDK. Remember you have to understand that they are business, they thrive on money, as most things in the world. First to reiterate what Gimme Anime said: The Dollar to Yen ratio is lousy. According to YesAsia currently the Yen to Dollar ratio is: $1.00 = ¥77.268. Thing with buying from 2nd hand retailers, which is what predominately U.S. vendors are, and the fact that they are having to cover for the cost of Shipping. Chances are if you are buying online shipping is going to be AT LEAST ~$30. (Since most of the time they are based on a weight system.
Take for example me: I buy DVD's from Japan time to time, and I bought the starter boxset to Higurashi no Naku koro ni Kai, from Rakuten, the price on the website was about 552JPY (Approx: $7.20) with international shipping (which was 1,860JPY or $24.18) the total came to 2,440JPY or approximately 31.72, and this was an empty box, with two DVD's in it. (So you can imagine the price of a figure that weighs more than this)
This is why American stores sell it for so much higher, it pretty much is covering what you would cover if you were buying it from Japan yourself, the only difference, instant gratification, the fact that you have spoken your word on buying things like this in the dealers room, and the fact that you helped an American vendor, which is nice because, unless they are working with a Japanese website to sell their items to an American audience, they don't get much of a profit selling imports.