Was there a certain band? A certain way the music hits you that wasn't like other kinds of music? Conversely, is there anything about it or the scene that turns you off?
For me I think it what attracted me initially would probably be that in my opinion, more than almost any other genre industrial embodies intensity. DARK intensity. Much like death metal, as someone said, but death metal has a more frenetic, more brutal quality to it, whereas industrial is more coiled, more compressed. Not compressed as in weakened but compressed as in the way a jack in the box is compressed: tension and energy barely held in check that explodes at just the right moment. I love that. And I like death metal, too; there's nothing wrong with brutality. It's just different music for different moods, really.
And as with death metal, I usually like the subject matter of most industrial songs, too.