DanneSandin on 15 September 2012
It all depends on the competition (and nowadays that's not Sony and MS alone; you got phones and tablets as well). And I don't think it'll reach 20 mil in it's first year; more likely 10-15m. Perhaps it'll sell 20m in 2014 - IF there isn't that much of a graphic leap.
At minimum it'll sell 40m, and maximum it'll get to 120m... so let's say 75m ;)
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Furthermore, I think VGChartz should add a "Like"-button.
