Too much codings to do and this don't benifits ATA. Exchange $ to EC to earn, then now we are talking!
however, I think the roleplayer majority will never go for it. hmm, how to make it appealing to the socially disabled...
I was gonna suggest this. This way those who spend money on this game will cash in for the developers, and fairly low paying players will still be able to use the feature and if they earn anything they can still change to cash. By the way, your name is creepy as fuck.