The exchange rate is definitely in your favour, but the prices in Canada are generally much higher, so it end up being a wash, or, in many cases, still favourable to buy in the US. I really depends on the piece. When I bought my AP, I was able to get it in the US for several thousand cheaper than I was able to negotiate in Canada. There may be less of a price gap with Panerai.
But, have FUN in Vancouver! It's a fantastic place to visit.