My tattered, second-hand copy of Arthur Miller’s “Death of a Salesman,” on my shelf now nearly half a century, shows a cover price of 95 cents. One might be tempted to view that as emblematic and perfect for a now hoary mid-20th century period piece, almost quaint in its portrayal of desperate lives crushed by the weight of an outmoded American dream. But the play is a period piece only in the way that “Othello” and “The Cherry Orchard” are, which is to say, the “period” it encompasses spans pretty much all of human existence, or at least that in which people…