'Mad Men' price index: Cooper's Rothko art
Sources: "Mark Rothko: A Biography," U.S. Bureau of Labor Statistics, The Boston Globe. | Photo by Carin Baer/AMC
The abstract painting by Mark Rothko in Bert Cooper's office on "Mad Men" might have been had for thousands of dollars in the 1960s, while the artist was still alive. And buying one probably would have been a good investment, since a Rothko sold at auction for a price of almost $73 million in 2007.