First of all, thanks to all you guys, who replied to my last call, I am very glad to meet such varied opinions!!

But it is true, the other side of the question is logically:
what is NOT art for you?
I feel like I am close to my final conclusion, but prefer to hold my sight in order not to persuade your answer! T_T
Just a couple of facts about my setting;
I live in Germany, where nearly anything is potentially considered a piece of art ^^
Well, this country has a very special history, but however..
The boundaries have been widened for decades,
and there are not many things you can pop up with to get some shocked feedback.
Okay, for example I remember one guy, who was going to break one of those LAST taboos,
and planned an installation with a "performance" of a real person dying, LIVE.
Well, what happened? The church guys freaked out instantly, and the show died unborn..
But USUALLY is everbody happy with everything here