borscht is not something that is sold in supermarkets. not a decent one anyway. it's something you cook using a family recipe and in advance, to give it time to attain the necessary flavor. price-wise it varies depending on what kind of meat you use (if any) but is generally cheap.  it's just that a wagie probably doesn't have the time for that. whipping up something using pasta, rice of buckwheat is much quicker. moreover, soups are meant to be eaten for dinner, not for supper. people who come home at 7pm usually dine out.
Russian Federation