VGC seems to be spot on again. 1million shipped and 850k sold is pretty accurate. 150k in stores is easily possible, especially one month after xmas.
I have been in two stores, today (both media markt) and there were like 30 PS3s on the shevels in each store. And those stores are pretty small ones. One in a city with 40,000 and the other one in a city with 70,000 people.
There were tons of consoles 50 Wiis, 30 XBox360 and 30 PS3s.
Imagine not having GamePass on your console...