There's only one MMO I've played with a functioning economy and it's a TOTALLY different kind of game. If you want to experience a real economy in game and all the lifelike problems it introduces, go play EVE Online. Once in-game money is hard to come by you'll get all the degeneracy of mankind coming to your favorite game. I would much rather have venues and ERP than real-world psy ops, cartels, scams, etc.

If you have 300mil, have bought all the registerables you can, have all your artifacts and relics maxed out, congrats you've won the game. Take your victory lap and wait for the next level you can also conquer.

Also, I have 200mil, but your 300mil would give me a nice even 500mil, which would be pretty cool, so... can I have your gil?