Bear in mind that financials in the form of exclusive corporate deals factor in, too. I used to buy a lot of videotape at Price Club. I really liked the Maxell

Bear in mind that financials in the form of exclusive corporate deals factor in, too. I used to buy a lot of videotape at Price Club. I really liked the Maxell Hi-Fi tapes; they carried multiple grades of the Maxell line. After Costco took over, only Sony was sold. Another example: the credit card partnerships. First Discover only, then Amex only, now Citi-branded Visa.