The laptop DJs might be doing rocket science, and creating amazing soundscapes, but it’s totally boring for an audience to watch. To me, 2000 people staring at some guy behind his computer for four hours is crazy.
I don't know dance culture passed me by, but it seems that staring at the DJ isn't what anyone goes to these things for and anyone staring at a DJ for more than a few seconds is crazy.
This all reminds me of a joke: "So one DJ says to the other, 'Do you want to go to a movie tonight?' and the other one says, 'I don't know, who's the projectionist?'"