I would love to have exactly 34 Glamour Plates as of the 7.x patch cycle and an additional 2 (plus 1 for every planned additional Limited Job per whole number patch cycle) per whole number patch cycle.

34 accounts all current jobs, DoH/L classes, the current Blue Mage Limited Job and Dawntrail's planned Beastmaster Limited Job. With the 8.x patch cycle, 36 for the usual cadence of 2 additional jobs (or 37 for the incredibly unlikely addition of a 3rd Limited Job).