How are you going to make your audience interested in the story you are telling? Why should they care?

So the goal is to show our subjects as people, not just video game players...

"Legitimize the hobby..."

-- Interesting personalities
-- Illustrate what skills the players get out of it (social, physical, mental)
-- Demonstrate the validity of the hobby in general (professional gamers in Korea; Ken landing a Survivor deal, Major League Gaming, etc.)
-- Highlight the community

The lead is vital here -- we have to hook the audience immediately. Photographs also help since the game is visually appealing. If it's well made, we can make the audience interested.