His point of apples and oranges had to do with restaurants vs. grocery stores. Your point falls right in-line with my points. Choice of products. Not all grocery stores sell the same exact product.
The restaurant has a choice, the grocer has a choice. The customer has achoice.
Shoot, some Home Depots don’t sell the same crud. I had my floor picked out at one Home Depot but tried to buy it at the home depot closer to my house and it wasn’t sold there. It wan’t out of stock, they simply didn’t sell that particular floor. arrrggh! I was piping mad. (can you tell?)