In New York City, 1899, commercial sales of pies hit 80 million. ~23 per person, per year, not including home made. At the time there were just 21 pie manufacturers, 19 of which were owned by one mega-piecorp. Despite it's low-brow reputation as a food of the common worker, there was much consternation about the monopoly, and it's risk to the diversity of the art of the pie.