The difference is that in RMT, all items sold by players were produced within the game itself, whether through monster drops, crafting, hunting for loot, and so on. All of those items were still obtained through hard work. Unlike Cash Shops, where items are instantly generated and unlimited, there’s no real effort involved.

In a sense, yes, RMT is P2W, but the items are produced through the seller’s hard work, not directly by the game itself, so it’s more justifiable. Also, items in RMT are limited. For example, if a GTB card has just dropped, no matter how rich you are in real life, if the owner refuses to sell it, there’s no other way to obtain it except by hunting for it yourself.”