The fall was mostly likly due to political lobbying to the Canadian ruling folks... from the companies with preprinted Canada-USA prices on their prdoucts, like greeting cards at Carleton and Hallmark Cards. I suspect they have warehouses full of Christmas cards with $3.99 US, $6.99 Canada marked on "em from the (around) 60 cent Canadian dollar period:) Soon they will be able to bring 'em out again.