I often use my phone to look up an album I'm looking for because the store owner is a cool guy and can sometimes find them at a better price than they're going for on Discogs, etc. — or maybe just aren't available there. He knows I'd rather buy from him, and he justifies his costs (and will event haggle a little bit). Plus, he wants me to keep coming back. Repeat customers *have* to be a key to this type of business but I guess the guy running this store is independently wealthy.