Jinan Unified Ginza is so expensive! Why can you continue to operate? What is their business philosophy?

Things in Ginza are really expensive, especially underground in Ginza, quancheng square. After living in Jinan for four years, I feel that things in RT Mart are suitable for ordinary people to consume. Of course, there are many people in Ginza who go to spend money, depending on their economic ability and preferences. I think there are two reasons for their high pricing: first, the location is prosperous and the rent of shopping malls is high; Second, their enterprise positioning is at a higher level of consumption. I have bought something in Ginza several times, but I don't think it is suitable for my consumption level, so I won't go there to buy it. Most of them were bought in RT Mart.