People are thinking 3DS is selling well in the west? I fail to see who, not kidding, at least here. 3DS received an internet fame of beast after it started selling well (price cut + games), but here in VGChartz, only japan is giving good numbers, and barely! There'll never be a DS anymore.
Anyway, I still don't know why people argue about VGChartz numbers, it's good to have them, but they can be no ammo for both sides of the discussion. If someone want to "battle", they should always use shipped numbers.