I think this loss of focus on 'is it good enough?', rather than lack of attendees is the biggest threat to the scene.
Some of the stuff I hear (inc soul and RnB stuff) that gets lauded is pure shite - it absolutely does the boss' head in and is a big reason, compounding Pete's ill health, we ain't going out..
If it's not up to snuff it shouldn't be played, for years and years people have been saying 'what about forgotten oldies' but in practice that seems to mean 'what about fucking obvious stuff coz I as a DJ don't really know my stuff'. On top of that most DJs are spinning for the ego trip and so want to play unknowns, and that becomes so important that they play stuff that wasn't spun before coz it'd get booed off.
I'm by no means really knowledgable, but back when I was DJing I often got people saying 'nice newies spot' when all I was playing was oldies, it just takes a bit of thinking and learning.
Dx