The cure did this, we got tickets a few days before the shore, bought from reseller directly through ticket master but they could only be relisted at face value, got 8th for $75 I think, it was a great show
Here in Norway they passed a law which states you can only resell tickets at face value. I'm sure there are some scalpers still but I can't recall reading about it in the news the way I did before the law.
Thinking more on those 10% cap, it would allow scalpers to sell the original ticket to themselves, over and over, to eventually reach the price of the market.
Unless Ticketmaster takes a significant proportional bite at every resell, nothing prevents scalpers to triple the price of the original ticket, but reselling in a loop.