There used to be some limited open market fluctuation under the old 2 system. We used to have the direct market free of Tommi and the "Exchange game money" market rigged at 460 by the gamemaster.
The old direct market was fun to play around with. Only players traded here. I'd like to see that return. I suppose once the gamemaster lowers the exchange rate to whatever target they have in mind maybe we can see the 2 system again.