Backlash
The appearance of commemorative postage stamps caused a backlash among some stamp collectors, in the early years of stamp collecting who balked at the prospect of laying out ever-larger sums to acquire the stamps of the world, so they formed the Society for the Suppression of Speculative Stamps in 1895 to blacklist what they deemed to be excessive stamps. The organization broke up after unsuccessful attempts at getting collectors at large to comply with their wishes. Today the early commemoratives are still prized by collectors.
Read more about this topic: Commemorative Stamp