> different from the service offered by traditional grocery stores which offer many different products, but are not arranging those products in relation to a particular request

That is incorrect. You may be surprised to learn that grocery stores sell prime shelf space to distributors/brands.[0]. In this case, it's the distributer's request - not yours.

[0]https://cspinet.org/news/supermarkets-%E2%80%9Crigged%E2%80%...