I'm always on he lookout for a plausible excuse to buy new gear of various kinds, and the recent rapid collapse of the the C$ vs. the US$ may provide one, for a while at least. I have noticed that some photo gear, notably Canon & Nikon, is currently about 20% cheaper in Canada than it is in the US. How long this might be the case is anyone's guess. If you take the pessimistic view, that the C$ will be weak for a few years and that the camera companies will soon adjust their Canadian prices, this might be a good time to buy that lens or camera you've been contemplating. It's not that anything is particularly cheap right now, just that it could soon become significantly more expensive, and stay that way for a while.
It would be a nice boost for the Canadian retailers if prices weren't adjusted though. They really got burned when the C$ was strong and the US prices were much better than they were allowed to charge in Canada. The current situation must feel like payback time for them!
BB