I had a Pioneer PL71 that after around 20 years, developed two problems.
1. The speed control which used to be pretty close to the middle, now needed to be almost turned almost all the way up to the + maximum, and it took several minutes of warmup to reach proper speed.
2. The hydraulic arm lift had apparently lost some fluid, and now only picked the arm up about half of the original height and when released, put it down twice as fast.
This is not to say that these problems affect other PL71s, but if you were to consider buying one, I would certainly examine those two functions closely.
Steve