It's less about preserving scalpers jobs and more about looking at it realistically.  Capping markups violates free market principles.  It looks even sillier when you consider that necessities such as food, fuel and housing don't have restrictions in place but luxury products like tickets do.  Another thing to consider is that the Internet has decentralized everything.  When the United States outlawed bots, brokers moved overseas.  When price restrictions were put in place, companies incorporated in a different state.  The resale market is a supply and demand business, and the reality of it is there is $6 billion at stake annually.  Try and cut the supply, and it all moves underground.