Electronic music is mainstream, which is odd considering fifteen years ago it was a niche genre placed in the back section of US record stores.
I grew up listening to Paul Oakenfold, Underworld, The Prodigy, Chemical Brothers, and more obscure electronic DJs like Roni Size and Photek. I never thought electronic music would be popular.
To see dubstep break electronic music is even more surprising. Just a few years ago dubstep was completely underground with the likes of Burial, Skream, and Benga. Skrillex now makes $15 million a year.
Money taints music development. Just look at the destruction of hip-hop, which like electronic music grew out of dance parties and peaked out after the rise of Eminem. When music becomes more about Hollywood than the sound itself, it self-destructs. Electronic music will burst as well but the real crate diggers will continue to support it.