@hue-man,
I think there is more going into a piece of art than just the piece itself. A few examples are with art itself and with some music.
There was this young girl, around five or six who supposedly had some artistic talent in abstract painting. But it so happens that her father was a struggling painter who just couldn't get any of his stuff recognized. Strangely his daughters paintings were the talk and even a few exhibits were created because this young girl was so "talented". It is now theorized that her father created the paintings and used her to make money from them. The reason being is a test was conducted to see her style recorded and compared to all the previous work and they were drastically different pieces. The piece that she created on camera looked like the work of a six year old unlike all the other pieces. This called into question if the other works were not done by her. So there is that perspective.
As far as music goes, I can give a band that I bet no one else on this forum would ever say they like. It is not that hey are bad, in fact I consider them geniuses. My point is, that art often follows acceptance instead of actual taste. People want a collective thought rather than individual opinion.
"Everyone likes uniqueness but hate it when they see someone is completely different."
"You have to be the same as everyone else just in a different way or they will hate you for it."
In other words, art has more than just it's own to consider itself art. A brick glued to a board is not art, even if someone wants to say it is modern art, it's a gimmick, not art.