The point is that most modern rooms at northern do's aren't really modern rooms - they're to all intents and purposes 70s rooms.
These can be popular but you have got to have the right DJs, promotion and sounds. It worked at The Plinston in The Ghetto for example.
Too many of these so called modern rooms attached to northern rooms are staffed by "carpetbaggers" - northern soul jocks with a few overplayed 70s anthems that they've won on John M's auction and who are doubling up and moonlighting between sets in the northern room. This might keep the promotors costs down, but it doesn't help make for an attarctive night for people who'd potentially go to these venues. Not many DJs can play good 60s sets and good 70s sets. Too often the so called "modern room" northern DJ is just playing the same old same old. And that ain't really modern No wonder people don't bother!