In a panic situation like the end of 2013, a non-popular caliber sidearm like a 38 super, 9x18 mak, 7.62x25 tok, or the similar was nice to have. That ammo was everywhere while 9x19, 40, 45 was scarce. Revolver ammo - if you like shooting them - was available for a while too.
Of course it was...