[margaretmattson]

Big chain stores, like Costco, require a certain number of residents per mile. This demographic must include a range of age and income. Costco has a high volume of commercial, professional,
governmental, and church/charity buyers. I do not know the actual numbers, but I would not be surprised if these sales are much larger than personal. It is mandatory the site chosen is close to MANY as well as a variety of businesses, restaurants, offices, churches, schools, local and state government buildings. IMO, they did their homework.