> 3) Walmart's products are mostly middle-to-down-market, even online, and that doesn't seem to have changed all that much even as they've grown their e-tail efforts. Try buying a nice watch or high-end stereo equipment there. No such ceiling applies to Amazon, probably because Amazon welcomes re-sellers (which can span all market niches), while Walmart doesn't.

Yes but I'm quite sure when I order something from walmart I'm getting the genuine article, not a knockoff dumped into the SKU bin by some shitty counterfitter