Why no Plex system?

[Brannigan]

It's no different. If you can achieve the end result by paying gil into it, then it's the same between selling one commodity vs selling another.

I just stopped in to say that this is the worst argument I've ever seen on this topic. Congratulations.
Also PLEX is just sanctioned gil buying and should be avoided because it explicitly attaches a real money value to in-game items and makes things less fun. See: Diablo 3 on launch.