3 million is a bit of a stretch if you're talking just holidays.
NPD sales for July will likely come back down to earth to the 100k/month range.
Sales have not taken off in Japan either, despite MK8 so that leaves the Wii U with only really 2 markets to make hay in and they're particularly strong in either one.
That plus I think PS4 will start to flex its muscles this fall with Destiny, NHL, Lord of the Rings, Batman Arkham, and several other IP finally starting to hit the system.
At the end of the day, I think the vast majority of the gaming public simply wants a console that lets them play the widest variety of games, the NES, SNES, Playstation, PS2, and now PS4 all adhere to that, the Wii/360/PS3 gen is the only anamoly to this, and even there, 360 + PS3 basically just split that audience (and that was a higher audience than Wii owners).
