mass effect - 1 million copies sold?

[erikers]

sinha said:
"We've... seen a strong response to both Halo 3 sales with more than 5 million, and Mass Effect which has sold more than a million copies in less than three weeks," noted Bell, highlighting consumers' reaction to Microsoft's holiday push.

MS
Halo 3: > 5,000,000
Mass Effect: > 1,000,000

vgchartz
Halo 3: 5,819,045
Mass Effect: 557,356

Why would they be giving "sold to consumers" numbers for Halo 3, but "sold to retailers" numbers for Mass Effect?

 Stop making too much sense with logic.  I'm warning you, people will start to get angry here.