It had a whole month. You guys are crazy thinking it sold 500k or 600k. It sold more than the Wii in its first week. And it had a whole month.Nintendo didn't have stock for 1 million in US... they probably shipped 2m this fiscal year WW.
Honestly if it's sub 1 million then it's a huge flop in my book. PS4 sold 1 million in one day. This thing had a full month