Whether you get rid of scalping or not, you are still going to have the "10:00 start, sold out at 10:00:01" problem. I haven't heard the solution to that yet. If a good is priced far, far below what the market will bear, you are always going to immediately sell out of it.
Think about more intermediate situations too. If scalpers are buying half the tickets for a concert, and doing so in a very effective way, they could be the difference between selling out in 2 minutes and selling out in 20 minutes.
