This is now the most valuable piece of Star Wars memorabilia

Popular Science 

Artist Tom Jung's 1977 painting introduced the world to the look and feel of George Lucas' blockbuster adventure. Breakthroughs, discoveries, and DIY tips sent every weekday. Darth Vader's reign has ended. For a brief time, he owned the mantle of "Most Expensive Piece of Star Wars Memorabilia," but before you could say "more wealth than you can imagine" he fell once again, with a new challenger rising to take his place. It was only this past September that a verified screen-used lightsaber hilt wielded by the Dark Lord of the Sith in and set a sales record by fetching $3.65 million.