I believe that made the Ancient Sinew Wrapped Lamina the largest bag in the game by a significant margin at the time, at 24 slots. On the other hand, when arrows were taken out of the game, quivers kept their number of slots and just became general purpose bags. If Blizzard was to remove the profession limitations on past 32 and 36 (?) slot bags, they wouldn’t remain 36 slot bags, instead they would likely become 22 or 24 slot bags, whatever was appropriate for the expansion.