At 82 ft-long, Murakami’s mural (detail shown) is now the largest work in the Broad’s collection Eli and Edythe Broad have been regular visitors to Art Basel along with the founding director of the Broad, Joanne Heyler. But this year the collectors are giving the fair a miss: opening the Broad on 20 September, a $140m, 120,000 sq. ft museum on Los Angeles’s Grand Avenue, has had to take priority.