I smell commission hungry people or a lame store manager. Either way I was not going to buy the Acer Aspire One netbook there, since they wouldn't price match. That's also the last time I will go in that store....ever again.
I ended up going to the Bureau en Gros on Jean-Talon (near Victoria) where they price matched (and beat the price difference by 10%) without any hassles-like they should. So they got my Acer Aspire One netbook purchase, and any future business from me.
As written in their policy on the Staples website (I did not know this at the time, but now I do...More 100% pure bull from salesguys):
An advertisement is defined as a copy of a current dated advertisement, original register receipt, catalogue page or competitor web page.