Berger Bros sells the EN-EL18 for $199.95 and Calumet sells it for $179.95. Some Dealers in the USA discount more, others discount less, others don't discount at all.
This doesn't change the fact that the EN-EL14 List price is more that twice as much in Canada than it is the the USA.
Since Henry's is selling the EN-EL18 for the Canadian list price, and Best Buy Canada has the EN-EL14 selling at $109.95 ($20.00 over the Canadian List Price) it would lead one to the conclusion that Canadian Retailers are not discounting. The question is Why? Is it the Dealers wanting to maintaining a higher profit margin or is there another reason. Good Luck and Enjoy your Nikons!