The answer to the question above would be that the advantage of repeating the syntax of the inital clause is that the repetition creates a comparison/contrast theme.
Charles Dickens has used the same structure to talk about opposites: he says that it was the best of times at the same it was the worst of times and adds that it was the age of wisdom together with the age of foolishness. He uses the same syntactic construction to refer to both positive and negative things and, in this way, creates a comparison/contrast theme.
