You probably knew Microsoft’s Xbox Live was big – but now the company has revealed just how impactful Xbox Live has become. Xbl

Dennis Durkin, CEO of the Interactive Entertainment Division at Microsoft, announced this week that 50 percent of Xbox Live users – some 12.5 million people – pay for a “gold” account – which runs $60 per year.

That’s $750 million per year in added revenue for the company – a number that’s sure to make Sony jealous. That user base is an active one, as well – a quick look at the “Halo: Reach” numbers will prove that. Within the first four days that title was available, players spent 953 man years playing online. 

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