Chris, assuming that you will be purchasing in Canada, I think that you will be in for some "sticker shock". Prices for alcohol in Canada are about double the US prices. I can't comment specifically on vodka but a nice bottle of French wine in the US is half to two thirds the Canadian price. Chalk it up to higher taxes and the distributors tacking on some additional $$ under the guise of cost of doing business in Canada (actually a cash grab!).
If you can find that Canadian vodka in the US, it will be cheaper to buy!