Very true. A good friend was a manager of a big pawn shop, in the town I use to live.
He ran the business different than most. Each department had a "specialist".
The jewelry section even had a highly respected Gemologist. At the same time, he tried to teach everyone that worked there, a little about everything.
When he decided to start listing some stuff online, he would put the research into items, so he knew what it was worth. They would give an item about a month in store, and if it didn't draw any interest, it went online.
Some stuff e-bay, some stuff GunBroker. A person could still make a good buy in store, especially if they didn't come into the store with a crappy attitude.
Being a friend, I always got first shot at anything he thought I might be interested in, and at a really good price