I went to Infest (an industrial music festival) in Bradford quite a lot (sadly it looks like Bradford Uni are not doing events any more, so there might not be another one unless they find a venue :-/ ). It was more like an industrial music *conference* than a festival - you'd be hard-pressed to throw a tennis ball anywhere in the venue without hitting some highly-regarded musician. Like, you watch a big-name band on stage, and then ten minutes later you're standing at the bar with them comparing curry houses (and Bradford has a lot of those). There's a Green Room, sure, but the interesting people are out front watching bands.

I don't think you get that anywhere else.