It's reasonable to assume that, but there's another point. You don't have to go to the U.S. You don't have to travel across the border, buy your iPod, and bring it back. You can ship iPods into Canada duty free and just pay the GST. If there was that difference in price, it may make sense to even buy one if you were going on your winter vacation, but you can also buy one online.
On February 3rd, 2011. See this statement in context.