They might be doing that already by acting as scalpers. I don't see why the solution isn't simply what airlines are doing where you register a ticket to a name and it's non-transferable.
Both venues and airlines normally segment the market by how good a seat you get.
The cost to the concert going public of ID verification would probably be a lot lower than the costs scalping imposes. And the concert venues could certainly capture more than $5 per concert goer by raising prices closer to what the typical person actually pays.