@krik: ioi said that because everyone was howling about VGC over-tracking DS for January compared to NPD's numbers. He said then that VGC may have over-tracked the DS, but he thought NPD under-tracked it. If I'm not mistaken, before the numbers were released he stated that he thought the NPD would compensate with large DS numbers for February...do you not realize how insane 587k DS units selling in February in America with no significant software releases is?
TheSource addresses the DMC4 differences in his article.
The 360 differences have also been talked about, as just about any hardware/software discrepancies in the past have been. It's possible the many of ioi's sources lean more toward the 360, just as it's possible that many of the NPD's lean toward now-intensive PS3 sources. He also said the some of his sources only provide monthly data, and that higher PS3 sales were evident when he received that data(with regards to Jan). He can make adjustments to the formula in the mean time, but there is no way to magically have a concrete formula that predicts a widespread, shifting market to a tee.
Last but not least, VGC's isn't here to predict NPD data. The NPD, like any source of information, is used as a sort of barometer. VGC also gets some info from publishers, so you should stop acting like VGC is blindly flailing for 360 and Wii biased numbers. I'm glad he puts out the data in the most accurate way possible with the sources he has at the time, then adjust later when he receives monthly data(from some sources) and talks to publishers.
If the NPD(who also adjusts and retrofits their numbers) is the beginning and end of all NA sales data in your mind, why are you even here?
"I feel like I could take on the whole Empire myself."
