Soon iPhones will be the most smuggled item from Canada into the US. Unless you are wealthy you won't go to Apple Store to buy your next iPhone. Instead you will meet a stranger in a dark alley to buy a smuggled iPhone.
A bunch of folks live close enough to the border to roll some light shopping into a weekend visit.
If the aim of the current administration to weaken the dollar succeeds, it may not matter. Even avoiding tariffs it will be that much more expensive to buy things in foreign countries.
It's 2025. We go buy our weed from the store and eggs from this one dude who's a friend of a friend in an alleyway.