As a retailer of vintage Steinway & Sons pianos, we are coming clean today. Steinway has built and maintained an American piano brand that has been a dominant player for over 100 years. That being said, they have done so well with building their brand that it sometimes causes a vintage antique Steinway to be valued higher than the piano really is and higher than a similar piano made by another manufacturer. You can increase the value of an antique Steinway by rebuilding, but ideally, one would take care when rebuilding and keep the soundboard and have a paper trail to keep the value. What do you think about vintage Steinway pianos?