@cvvhrn this is ancient data, from the late '80s and early '90s - way back in the 1900s, but, i worked at price club / costco. we opened early on weekdays to only business card holders. mostly it was people that owned gas stations, liquor stores, and delis. they would buy truckloads of these big container things. you'd see them coming through with half-a-dozen flats stacked to rafters with cigarettes, nacho cheese, sodas, candy, etc. during regular hours you wouldn't see them as much because it'd get too crowded, especially around the damned free sample tables. but if you are buying pickles by the tub, several tubs at a time, then just the time saved in opening the packaging is a win.