Agreed. To add to the historical artifact point; with artworks a part of the value in the artifact is what the rest of the art world was doing at the time. What

Agreed. To add to the historical artifact point; with artworks a part of the value in the artifact is what the rest of the art world was doing at the time. What we take for granted today hasn't always been so and often notable pieces of art are recognizable for their place in the evolution of an art, be it fine art or technology.