This is very true. Honestly, even the best-kept instrument degrades significantly over time. When's the last time you saw anything but a brand new instrument in a big concert? There's a reason you never see pros playing treasured vintage instruments the way a violinist would.
Aside from their historical or ornamental value as furniture, old pianos are pretty useless.
Aside from their historical or ornamental value as furniture, old pianos are pretty useless.