Earlier quoted context omitted.
I don't think that is right, Whole Foods stores are already full of...food. They don't have room for hundreds of additional products, never mind tens of thousands.
Place an order by noon for groceries plus anything you want from Amazon. Amazon fills up truck(s) at whatehouse and drops off at local Whole Foods. Stop by on your way home from work and they bring your items to your car. You get free same day delivery. Amazon just greatly saved on last mile delivery costs. That's the value of those nodes without having to store all the inventory.
If this works out for Amazon, I wouldn't be surprised to see Walmart try and buy Trader Joe's. They own Aldi, which has made a big push to compete with Walmart's reach outside cities. The nearest Aldi is closer than Walmart, and that's already not far away.