They really don't want to stock the PSP Go. Apparently it's too expensive. But not only that, with no support for physical media the company will unable to generate return sales via games. Oh noes.
It just shows what a bold move Sony have made by cutting out physical media. It seems like retailers are going to have a number of hissy fits on their hands in the future because this is the way the medium is moving.
Still, if you're Dutch and you want a PSP Go, you're not going to be getting it from NedGame. They don't want your trade.