Gustav Klimt is important historically, writes Mario Naves. “But in the greater scheme of things, Klimt is small potatoes. Forget Modernism: If $135 million is considered a commendable investment for a picture by a minor artist, what price tag do we put on a painting by Fra Angelico, a sculpture by Donatello or a drawing by Durer? The question is undoubtedly lodged in the overexcited minds of museums, collectors and auction houses the world over.”