20+ years ago someone was telling me how video conferencing was going to eliminate business travel. I politely nodded but inside I was laughing at the insanity of that thought. Nothing replaces face to face communication. It never will. Trust comes from a whole lot more than what we hear and what someone does. It is the subtleties of communication that make trust develop. Even in grocery shopping, everyone is happier if they can walk down the aisle, pick up their item, or see what they want. They see people buying items they have not thought of, they exchange ideas with other customers, and develop a trust in products they have not thought about. Besides, delivery has lower margins for the grocer. Nothing will ever totally replace face to face. See how grocers feel about delivery at the Wall Street Journal.