Do I like Privatized Executions?

Arthur Miller says quite freely that we should profit off of executions, so that once people are bored and sick of seeing these, they will realize how pointless killing is.

Believe
It's difficult to imagine a country where the execution of a person would be watched from an arena. In America, it's not generally accepted and the idea of it is would be frowned upon by most upstanding citizens. However, there are many countries that have flogged and given capital punishment in public arena. Singapore, I had a friend that lived there, would beat their citizens in public if they were found chewing gum (and this is not that long ago). It is accepted in many countries that making an example out of those that have done wrong will teach others not to commit the same crimes, or at least not get caught. I find the idea of turning using an electric chair in front of people who are willing to pay for it despicable and perverse. Just for a second, we can conceptually imagine this scenario. We pass a law that will privatize executions and sales on Ticketmaster starts today, I imagine there would be a lot of excitement. Crowds of people will gather around, like it's a ring with two fighters, except one's strapped to a chair and the other is in a black-hooded robe. People would cheer as if it was a match to the death and not a slaughter. After a while, perhaps Americans would be numb to it. The only audience left would be fanatics, much like it is for "Pro-Wrestling" and UFC fans. Perhaps Americans, like some other countries have, will realize that this doesn't lower crime rates. Maybe then, it will be apparent that killing another person only adds to the problem, and solves very little.

Doubt
I find it very difficult to conceptualize what people will do without evidence. I don't believe in concepts or testimonies, since everyone can make those up. I can, however, believe in history's observations and track records. Evidence has only shown that keeping beatings and executions on stage will in a way idolize the act. It's seems very likely that people will get executed for less and less severe reasons. It will start out with only multiple murderers, then to people to commit a single murder. It wouldn't be too far of a jump to execute someone who killed a celebrity in a car accident after that. Not only that, but it idolizes violence. The electric chair, which is not used any more, is a gruesome contraption. If we were to watch an electric chair at work, it wouldn't be just watching but also smelling. The people killed in electric chairs suffer. We use lethal injections now, because the electric chair was so cruel. What happens when kids want to re-enact that out in the home when the youngest sibling does something bad? It shows everyone and teaches everyone that killing is a valid punishment for crime, when killing should never be taken lightly. We were all born the same way and we have all physically gotten here in the same manner. Taking away another person's life should never be easy, because it could be ourselves in their position the next time.
I do not believe the answer to show people how inhumane capital punishment is by making a show out of it. I also don't know if this theoretical senario really shows that capital punishment is unfair. There are certain people in the world that should not be here. Sociopaths that will always kill and act without remorse cannot be changed. Soldiers in Uganda that torture and rape school children shouldn't be on this earth. It is unfair to say that all capital punishment cases are not reasonable.