@Gaara42, NPD doesn't really undercount. They get data from 60% of the retailers and extrapolate the remaining 40%. They don't just leave out the number of games sold at Walmart and other retailers that report. The error could go either way.
NPD is actually the only firm doing comprehensive data collecting for video game sales so its the only place EA and other publishers can go to get the data. EA doesn't collect this data themselves.
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NPD is actually the only firm doing comprehensive data collecting for video game sales so its the only place EA and other publishers can go to get the data. EA doesn't collect this data themselves.