I have a question say, under the same room conditions, a 20 year old piano that has received above average usage (avid piano player/teacher) but has also been regularly maintained and tuned vs. a same aged piano that was mostly used as a decorative piece or as a PianoDisc player in occasions, but with less maintenance (once every 3,4 year), which piano would be a better target for purchasing?
The answer to your question is highly dependent on the actual condotion now. Your best course of action is to hire a qualified tech to evaluate them both. He/she would then be in the best position to advise you. I wouldn't even venture a guess without seeing them.
this is all hypothetical, given a average ambient condition, not extreme in both cases, I just want a more of educated opinion not a buying advice.
First Iâ€™d have to play both of them. Give them the full check with my more challenging repertoire. Then Iâ€™d get the piano technician looksee and get an estimate on whatâ€™s needed in the next 5 years. A piano needs maintenance whether or not itâ€™s played. It would depend on whether the wear and tear from being played caused more damage than the lack of attention and overlooked maintenance has caused to the other piano. Piano is a hands-on instrument. Unless I try it, I just really canâ€™t say.
Didnâ€™t know itâ€™s hypothetical. All other things being equal (and again they never are) Iâ€™d pick the one played less. There should be a lot more felt on those hammers.
It would depend a lot on how the player system install went. Sometimes the pedals get pretty messed up when this is done. I have never installed or worked on one, so I don't know why this happens.