i learnt to fly at YSBK during the late 80's at every runway holding point, 3 aircraft waiting, the runup bays always full, and you waited for 3 or 4 aircraft to land before getting take off clearances, the circuit wait was similar, and 4 aircraft in the circuit would be an average day.
today, never have to wait at a holding point, rarely wait for another aircraft to land, and now 4 aircraft in the circuit is rare. even on a perfect Saturday morning.. i have spent many hours alone in the circuit on weekends now. maybe sharing with 2 others when its busy.. every second hangar now derelict, or being used for other non aviation businesses. very sad.