As of 2pm today, there was a baby grand piano in the Somverille good will for $400. It was a little out of tune. They keys were all working, the soundboard looked good (I'm not sure if I would be able to detect warping.) The cover was a wee bit warped, the key cover was mising a bit. It wasn't a brand I knew and the finish was cracking. Other than that, it seems like a sound piano.
I would have bought it if I had had room in my house.