The practice of "gazumping"...the feeling you get when u sell something and then find out it is worth more than us old it for...apparently is alive and well in the art world.
This practice has been present in the vintage card world as well.
While I highly frown upon such behavior...will this someday be accepted and normal???
http://www.nytimes.com/2016/01/17/op...sson.html?_r=0