I have to add something in here from a long time FFXI and other MMO player as well. When everything is resellable you not only have a barrier to new crafters but also new players. In a game where +1 to a stat meant a world of damage sometimes and really marked whether or not you were a competent player the demand was always very high for items. Because of this MANY people turned to RMT to keep up which further flooded the economy with money making inflation 10x worse. You received minimal gold from leveling in FFXI, it all came from grueling farming or simply playing the market so the whole system was a nightmare. Now we come to FFXIV where you actually receive decent gold from leveling. That would make the available monies that much higher (although it might deter RMT a bit).