» Mon Oct 03, 2011 4:33 am
Most games are retail-ready up to a month before their release date. However, should a distributor receive the copies early (Almost all do, to a varying degree), any sales made before the official "Street Date" are not counted as actual sales.
As far as I know, it doesn't hurt the profits, but it does sometimes place them lower on lists complied by NPD and such, which is useful investor swagger.