For many people in the game guilds, the idea of paying for your character is verboten.

People do role play, but a lot of real-world behaviors, market pressures and social pressures port over very quickly.

With a study that short you might be measuring excitement, not violence. You could effectively get the same effects by having them throw a Frisbee.

Nobody can say for sure how big the market is. It's not like you can go on the street and poll people to find out.