Right, but the whole point of Costco is "currated" content: they get good deals on huge quantities, because they make sure not to carry every type of product. V

Right, but the whole point of Costco is "currated" content: they get good deals on huge quantities, because they make sure not to carry every type of product. Variety isn't necessarily a good thing, and if Costco implemented free two-day shipping (for an additional fee), as well as an improved UI, they probably could become the biggest online "everyday" retailer (i.e. for things like cereal, toilet paper, etc.). Though I think it might be more likely that Fresh Direct, or a similar company, could get a stronger toehold on that market than Costco or Amazon.