and the electronics and motor are potential trouble spots
I doubt very much there would be a problem with the turntable/motor.
There is always the possibility of future problems with electronics on all old turntables, that fortunately usually can be repaired, unless it is a difficult to source microprocessor.
Make sure the turntable works properly before purchase.
The only way to avoid future short term problems is to buy new with warranty.
Audie.