The problem is,
as of now, even Americans are having problems with securing a Wii. I haven't been reading up these days, but that was the case during the first shipment(launch) of the Wii.. Totally sold out. I think the second shipments also sold out.. Retailers in the states are having
this problem too.
So if them Americans or Japanese people can't get ahold of enough units, why should we?

Besides, we are part of the reason they can't fulfil orders there.
Nintendo is already doing a good job in achieving their 1-2 weeks difference between different regions launch, Dec 19-20 US launch, Dec 2-10 Euro/Aussie/JP launch.. Man, are they tired.
And in all seriousness, if you can get bulk directly from US, great. If not, wait patiently, the fun isn't going nowhere