We have a story this morning on MNB about how Amazon has decided to convert Prime Video to an ad-supported offering, with the caveat that if you want to get the service - which has been ad-free since its inception a dozen years ago - without commercial interruptions, it will cost you close to 30 percent more a year. To me, this represents a lack of respect (to put it mildly) for best and longtime customers, and poses a question that every retailer needs to answer.