While that is true for the quality-based things like deli/baker, there is one advantage to massive grocery stores that the stores inside the city can't compete

While that is true for the quality-based things like deli/baker, there is one advantage to massive grocery stores that the stores inside the city can't compete with: selection. Every time I leave the city, I make a point to go to a suburban grocery store and walk down their massive spacious aisles to find new/different products that simply aren't stocked inside the city because shelf space is so limited. Entire aisles dedicated to chips!