[tb303]

What's even more amusing is that sentiment ("electronic music is now catching on") finds its way up every decade.

  80s -> Disco & House -> Pop, New Wave    
  90s -> House -> Pop    
  00s -> Electro & DnB -> Pop, Hiphop    
  10s -> Dubstep -> Pop, Hiphop

That's just a crappy sketch but i'm sure someone could flesh it out further. The reality is that it's a continuum, things go in and out of style, what's popular changes, the audience changes, but the music never really goes away, we/you/i just don't know about it. Dubstep is simply the hair metal (80s), grunge (90s) of the times, not a statement about electronic music's popularity or unpopularity.