I think pricing for a lot of things has a large component of historical pricing in it.

My favorite example: the price of books in the US and Canada. Just grabbed a random recent hardcover off my shelves. It's labeled "USA $25.95 Canada $32.50". I believe that price differential got established back when the US dollar was worth $1.25 Canadian -- but it still exists, even though the two currencies are now roughly on par. It's the exact same product with what is effectively a 25% markup for Canadians for no good reason.