Moreover, I feel that DreamHack carry out successfully to develop esport and video game at the same time!
Thousands of people go to the DreamHack with their own comfortable sit, play a lot WoW, watch movie and do a lot IRL stuff with other ppl. It far away the "pro zone". Nevertheless, both sounds to respect deeply each other activities. Maybe it's more linked with Scandinavian behavior...
I think it's the perfect place to start building esports.
The CPL and many others have made the mistake of hosting events in the middle of no where (Gaylord resort anyone?) and hope that an audience will come just to watch the players. Esports isn't mature enough in the western countries to draw a big crowd on its own, however, when you have 10 000 computer enthusiast in the room next door, chances are a fair amount of them would be interested in watching some esports. So you basically get a "free" audience.