Photography! Sure, it’s fun to tap upon it as it streams past our hypnotized eyes for hours on end, but also fun to collect as art. This week marks the 43rd edition of The Photography Show, presented by the Association of International Photography Art Dealers (AIPAD) at the Park Avenue Armory. Though single-medium art fairs can be difficult to produce and overwhelming to take in, AIPAD’s—the premiere American photography fair—showcases why this particular medium continues to astound. (Did you...