A successful clothing department store, in a central downtown location of a certain city, is of a limited size and has grown so much over the past year that it needs to expand. There are a few other slightly larger available retail lots in the downtown regions for sale, but the prices per square foot are quite high. The management finds that cost per square foot of lots in a suburb a few miles from downtown is almost half of that in the downtown region, so they plan to relocate there to save costs. Which of the following, if true, most seriously undermines this plan?
【选项】Almost all of the store's other locations, in other metropolitan regions throughout the state, are in downtown areas; very few are in suburbs.