This is something I've never really stopped to think about until now, but this artwork is actually a piece of genius.

It's an idea, or a concept, expressed in the form of a banana taped to a wall. It cannot be destroyed, or duplicated. You can tape a banana to a wall, but there can be only one banana taped to a wall. You can destroy the banana, the tape, or even the wall, and the artwork remains, because you cannot destroy an idea. In fact, someone already has eaten the banana.

Furthermore, everyone talking about it merely increases the value of the piece.

It's absolutely genius.