Are there that many copies of Ubisoft games sitting on retailer shelves ?

[Ail]

Ubisoft just released its result (http://www.gamasutra.com/php-bin/news_index.php?story=23410)

And they claim they have shipped over 2.5 million copies of Prince of Persia and 1 million copies of Tom Clancy HAWX....

 

Did retailers really order that many copies ?

That sounds odd seeing how much those games have sold so far ( Pop 1.5 millions, Tom Clancy HAWX 500k)...