One reason why Shakespeare's plays remain so popular is that they're now regularly presented in updated stagings with a contemporary flavor.
Plays are not written but rewritten, and much of the rewriting takes place at the behest of the director, whose job it is to grapple with the myriad complexities of moving a play from the page to the stage.
Whether they know it or not, most American playgoers owe an incalculably great debt to translators. Were it not for their work, comparatively few of us would be able to enjoy the plays of Chekhov, Ibsen or Moliere.
Nowadays, most educated people would just as soon stay home and watch 'Breaking Bad' as shell out a hundred bucks to see a Broadway play - assuming that there are any plays on Broadway worth seeing, which long ago ceased to be a safe bet.
Samuel Beckett's estate will not license productions of his plays that are not performed as written.