Microsoft yesterday announced that over 270,000 Xbox 360 units were sold in January, marking the thirteenth (13) straight month that the Xbox 360 has been the top-selling game console in the United States. The company also says that the Xbox 360, which is currently in its seventh (7) year of existence, made retail stores $301 million last month between console, accessories, and game sales.

Last week, Xbox 360 was revealed as the number-one selling console worldwide in 2011, according to publicly disclosed financial data from Microsoft, Sony and Nintendo. Historically, after several years in a console’s lifecycle, demand softens, but Xbox 360 continues to defy that convention.