That's because, back in the day, new tunes were being discovered at a rapid rate of knots
and DJ's knew there were plenty more out there to be played, when something was re-issued
or booted. That's not the case these days.
Also, back then, loads of people DJ'd with pressings/re-issues AND unknown originals at local nights in the week,
Its wasn't like now where only the top DJ's break new sounds.
Where do you think I first heard Dean Parrish I'm On My Way ?, it was at a
local mid-week night in Selby, at that time it had never been played at a major venue.
People like Graham Slater, God rest his soul or Dave Box have probably discovered
more records than most big name DJs or dealers, but they hardly if ever DJ'd at any major
weekend venues on the scene.