> A key difference is that in those situations (a grocery store, for example), the marketplace owners have already purchased all the products on the shelves. It

> A key difference is that in those situations (a grocery store, for example), the marketplace owners have already purchased all the products on the shelves. It's the grocery store's decision to choose what and how the products that they have paid for are presented to customers. Is this actually true these days? I was under the impression that this varied by product.