Re: Item Shops will you ever put one ?
PLEX just made it easy, anonymous and tradable. Mind, CCP do not sell any ISK or anything else of in-game items. They just made and item, that is equal to one month of game subscription, and made it tradable between players.
When a game company sells an item to players that CAN AND IS traded on the open market for real in game money then the game company is selling in game power for real world cash. It doesn't matter how many middle men there are.