Even if you don’t want to make it, I’ve never been in a supermarket that doesn’t offer a fresher option. I’ve even been in gas stations that offer what they at least claim is fresh potato salad.
Maybe if you really, really wanted potato salad and you were in a food desert but the corner 7-11 has canned potato salad you might buy it, but I’ve never seen this before in my life.
I don’t get it.
I’ve lived in both regions and both versions are strictly inferior to a potatoe salad based on mustard (+ oil and broth). The vinegar version uses a bit of mustard, but I’m speaking of mustard being the main ingredient. Naturally, I’m hated by both sides.
As you should be. Though a bit of mustard is also good in the mayo version.