Why is there no Apple direct sales store in Shijiazhuang?

Apple's marketing strategy is to lay out direct stores only in the commercial centers of big cities, so there are no direct stores of Apple in Shijiazhuang. Because the marketing strategy of Apple's mobile phone is high, precise and sharp, and the direct sales stores are only located in the commercial centers of big cities, and Apple's marketing strategy is also the main high-end, so there are no direct sales stores in Shijiazhuang.