Yes, of course. Microsoft seems to get the numbers from their top retailers (meaning the Top 3-5) of sold to customers and extrapolate them given on history, at least thats what they often state in Press releases. So far Microsoft numbers where close to NPD (+-15%). Thats a good error range for that kind of sample.
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Yes, of course. Microsoft seems to get the numbers from their top retailers (meaning the Top 3-5) of sold to customers and extrapolate them given on history, at least thats what they often state in Press releases. So far Microsoft numbers where close to NPD (+-15%). Thats a good error range for that kind of sample.