Anybody ever see "The King Of Kong: A Fistful Of Quarters" about the quest to get the high score in Donkey Kong?
It just goes to show you than in any field of endevour there are obsessives.
But that said, these guys are pretty out there.

http://www.imdb.com/title/tt0923752/
You wouldn't think a Documentary about videogaming would have a villain in it, but there you go. 
Fascinating!
I've never heard of this film before (then again, there were a lot of movies in the double zeroes I've never heard before!). I'm looking at the trailer right now on youtube and I'm instantly brought back to the early 1980s Queens, NY during high school when arcades were the place to be. It certainly didn't help matters much when the arcade was a mere 2 blocks fom high school. Donkey Kong was one of my favorite games and yes, it was brutal to play but it was fun to see how high can you go!

There were 2 kinds of scenes in the arcades back-in-th'-day:
There was the day scene when the younger, nerdy kids would fill up the arcades and play thier high scores and then there was the night scene when the older crowd would take over with thier high scores. The older crowd was
hardcore. I'm talking 'bout large groups o' chicks and dudes driving in thier Iroc-Zs, and buicks that would come in from Howard Beach, Belle Harbor, and Rockaway Park. There'd be blunt smoke in the back of the arcade, cocaine, and who knows what else... It was all so innocent then but these people were all serious gamers. This area was so popular that I remember a movie was shot at this location. Anyway, that was what I remember it was like and seeing that trailer reminded me of that time.
I see this kind of excitement happening again with this eSports thing...