The "Free" Piano It stands to reason that anything in good to excellent condition would have a monetary value. Most "free" pianos I've come across are those which are too expensive to repair and the donor is simply looking to save the cost of having to pay to remove the piano from their home.
The "Barely Used Piano". A "barely used piano" typically translates to:
Not Serviced Regularly
Problems Seen & Unseen
Slow or sticking parts internally (there are over 5,000 action parts)
Pitch is substantially flat/low and requires multiple tunings, repairs, & adjustments to bring it back to good standards.
As a piano technician/tuner, my focus is not just on the piano's pitch during the service, but also to keep a watchful eye on humidity levels, tone quality, performance, corrosion, and wear & tear.