in bulk is always cheaper. This is what Wal-Mart, Sam’s Club, and Costco practice to stay in business and to differentiate them from a local grocery store. Economies of scale is the reason why we buy package of toilet paper that has 36 rolls, or anything that is buy one get one free. The more we buy at one time, the less it costs us per item. It’s like grandmother’s adage of “everything is cheaper by the dozen”.
As an example, Costco can stock up huge shipments of bread loaves from Oroweat, while a…
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