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2009 was tough. We all know that. It wasn't just tough on you and me and Charlie Sheen, it was tough on the big three console manufacturers as well. Sony, Nintendo and Microsoft all saw revenue drops in 2009, although perhaps not for the reasons you'd expect. According to Gamasutra, Microsoft and Nintendo actually sold more hardware and software in 2009 than 2008, so the drop in revenue is likely caused by price drops.

Sony, on the other hand, saw a revenue decline of over 1 billion dollars, thanks primarily to the steep decline in PS2 sales - $700 million less than in 2008. Considering how long the PS2 has been on the market, I find it pretty impressive that it's still so key to Sony. However, given its decline, 2010 will probably be the last year the PS2 has any significant presence in the market.