why would a game allow that when thats literally their only revenue source? (for games like league of legends) And you could still do that with a centralized a

why would a game allow that when thats literally their only revenue source? (for games like league of legends) And you could still do that with a centralized auciton house or exchange. the tricky part of that is getting people on board to use the system. not the technology. i could make an easy crud app with a database that allows all that.