As opposed to calling it Underplayed... .If it walks like a duck....Underplayed,forgotten,rare...all been done and still being done.
But to really spice up the night you need the quality big stuff as well,alongside well chosen and place oldies.Drop something in your set that turns heads.
One point that's not been covered ( or i've missed),is the turnover of tunes needed to be a top dj.Once you're on the treadmill,if you are truly focused,you need to one step ahead of ther game.Crate digging,good contacts,even better memory than most in some cases.
Or you could just buy boots/pressing on the cheap and have a full nights sleep...