"I don’t line up in advance to buy paper clips. Not milk either. These are commodities, readily available at a cheap price.
That seems to be what concert tickets have become."
My concerts are all $10 or less. Never changes. My concerts run just about an hour. Anything longer, people start thinking about other things they need to be doing. Any shorter, they'll feel ripped off. Artists, like restaurants, should turn a room every 50-70 minutes.
And Lefsetz is right: Tickets are a commodity because time is a commodity.