Having just left Canada (Oakville) after living there the last four years, I can say that I saved many, many thousands of dollars by having things shipped to the UPS store in Lewiston, NY and driving the hour to pick them up. The bonus was that I was also able to fill up on gas at a lower rate, rendering the gas cost of the trip zero and buy a bunch of groceries (milk, eggs and cheese) at a much lower cost so the trips actually saved me more again. Heck, I used to save $30 a bag on dog food getting it from Amazon and shipping to Buffalo vs buying in Canada.
I saved around $1,500 on a pioneer kuro alone by having it shipped to Buffalo. On one pair of ID speakers I bought, the difference between shipping to Oakville vs Buffalo was almost $300. None of these savings reflect not paying tax either. It is purely price and shipping savings. Retailers in Canada absolutely rape the consumer compared to the US.
Also, I've read a few times that it is actually cheaper to buy PSB speakers in the US than it is in Canada so check it out. I always did a comparison on costs and it was usually worthwhile to drive to Buffalo. You'd be surprised how much you save (groceries, gas, air travel, tires, etc.).
Absence of evidence is not evidence of absence