Costly... yes.
Solution:
*Investigate methods of budget reduction from the event to make up lost scalper expenses (There must be some)
This might help alleviate the ticket dilemma without further isolating long-term attendees.
It's only money...
That would work as well, but I'm not sure how they would get the ticket number from the seller?seems like if the org figures out someone is a scalper, they can just refund the CC on file for the ticket#, void the ticket