Looks like a simple typo to me. If he meant 1.6 then that's right in line with the only numbers anyone has. VGChartz nos. No way even the series has sold 6.6 and no way pc out-sold the 360. You think so? Prove it. There are no such nos released for Steam or other Dig. DL services. I have seen exorbitant claims by pc fans asking me to accept the 'fact' that from 9 to 30 times as many pc gamers buy a game as are recorded as using it at peak. Sorry, no sale. Too bad there is no better way to estimate as even that would be interesting.
Neither do I accept as 'truth' the projections that console retail sales have reached a ratio of 10-1 over pc. Denied a reliable source I choose to believe pc sales incl. dd would be at best 60 or 70 percent of consoles. You are entitled to your guesstimates as well.
VGC includes Canada at roughly 1/9 population of the US and only slightly less average buying power and with very similar patterns. That is why NPD is always less than the Am. VGC nos. No mystery there. A huge typographical error by the site not by Drs. Greg or Ray. The article quoted by the OP said 'the sequel' so I won't bother trying to get the series nos., plus pc, plus the shelves to add up to 6.6m. We had some fun though.
