In sales, the system sold more than 1.7 million consoles in december alone, matching the black friday deal earlier that year.
Out of 16.3 billion dollars spent on gaming in general (U.S.A.) Microsoft walked away happy with just under 7 billion in their pockets, leaving Sony and Nintendo to split the remaining 9.3 between each other. Most of the money for xbox came from the games itself, probably the multi-platform games that most people buy for their xbox.