I think another upshot is that it ends up making all consumer products "lowest common denominator" consumer products. It's a vicious cycle: Step 1: Company has

I think another upshot is that it ends up making all consumer products "lowest common denominator" consumer products. It's a vicious cycle: Step 1: Company has a great product. Walmart begins stocking it nationwide, perhaps promoting it to increase their marketshare. That product's revenues explode, they expand, everything seems great. Step 2 to N: Then Walmart threatens to pull from shelves unless they can meet the cost of $substituteGood. The company cuts costs to make it work. Rinse and repeat. Step N+1: The product is no longer great. This is exactly what has happened with Rubbermaid and with countless other consumer goods.