Before you buy Pringles in India

Pringles are a famous brand of potato chips (crisps?). Check http://en.wikipedia.org/wiki/Pringles for more information. These are now available in India too. Go to any supermarket and you find lots and lots of Pringles cans on the shelves. Before you buy one, please check the top of the can for the date of manufacturing and the date of import. This is what I found on almost all the cans.
Imported and marketed by .................<some company>
Date of Import : Nov 07
Mfg Date : 15 months before the date of import
Exp Date: Check the bottom of the can.
Of course, the date of expiry is Oct 2008. Still, why should every can be imported only 15 months after the date of manufacturing? Do potato crisps last for 25 months after the manufacturing date, whatever may be the packing?
I don't really know the answers. Hope consumers give some thought to this.