Microsoft is celebrating a gigantic spike in Xbox 360 sales. According to ChartTrack data, the platform holder enjoyed a 260% rise in sales of its next-gen format 2 weeks ago (week 34) after introducing the Elite model to the market and dropping the price of its Core and Premium consoles. Perhaps even more impressively, sales only dipped 20% the following week - leaving up-to-date calendar year sales 4.9% higher than in 2006.
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