"Let's say you wanted a striker-fired pistol, 9mm, compact-to-subcompact. The question then becomes: Why would you not buy a Glock 19 or 26, Smith and Wesson M&P or Shield, an H&K VP9, or a Sig P320? "
Because I shot 3 of those and opted for a Ruger LC9S Pro. It's 5-10 ounces lighter weight, with a 5 lb trigger, no thumb safety or mag disconnect. The finest non-single action trigger I've ever used, 2" groups at 50 feet, 820 rounds w/o a malfunction ... another 2-300 and I may actually carry it occasionally as a primary.