In that dicey district known as Broadway, there are no sure bets, but reviving a cherished old musical comes close. Find a Rodgers and Hammerstein gem that's been away for a while or dust off a fondly remembered piece of froth like A Funny Thing Happened on the Way to the Forum, and nostalgic theatergoers will probably beat a path to your stage door.
But Chicago, the 1975 musical about a '20s nightclub floozy who becomes a celebrity after shooting her lover, doesn't really fall into that category. Artifacts from the '70s (the comeback of bell-bottoms notwithstanding) haven't aged long enough...