Da point
(Or are you playing thick?)
Guernica is considered great art.
And it was dismissed at the time by many as a cartoon.
Kinda along the lines as "They laughed at Einstein and Galileo....."
Usually the start of a crackpot theory though. :-)
While I share your misgiving about certain "art" remeber 2 things:
A) Art is in the eye of the beholder
B) the free market is at work. Someone likes it (or is told they should like it) and wants to pay the money for it.....