Sony in the past reported manufactured numbers instead of shipped numbers, so units they had to replace under warrenty requirements also got added within these numbers.
About a completely different remark in the article, does anybody have data on the development of the pricepoint for PS2 in Europe? Cause the article says: "We are particularly proud of this as it has been achieved in a similar time frame as PlayStation 2 which retailed, if you remember, at a significantly lower price" But PS2 got introduced in the Netherlands for 1149 gulden, which is over €500. So did the price drop very quickly and was it really that much cheaper 1 year after launch as claimed in this article?