All the girls liked him. His gig caught on. Influential DJs started playing a bit of industrial. Industrial became okay. But beyond a few shifts here and there over the years, the scene has a very low center of gravity.
Nobody really wants it to expand.
At least not drastically, not beyond the perimeters of the security blanket. In its attentiveness to uniform, Goth is Hasidic or Third Reich-ish, and while that can lead to the upsets and heartbreaks of cliquishness, it's also part of the scene's seduction. There's a position for you in its ranks, the requirements neatly and absolutely laid out, no questions asked, no thought required. Just sign here and collect your uniform. Of course, the same could be said of the punk or grunge or Deadhead scenes.