What aspect of Roleplaying Games has had the biggest effect on you?
The organizational side, easily. I went from being a player on the edges of the hobby a couple of years ago to someone who has organized RPG tracks for three conventions this year.
It helps that I like conventions. I was going to anime and science fiction conventions before I was a gamer. I also used to help organize fantasy sports events for professional sports teams back in my old profession. I always wanted to combine those interests. It just took some time to get the opportunity.