Personally I'm against it. I think that what we would ultimately see happen is that there would be a pressure for 'opt-out' players to adopt the money system if opt-in players felt that was the most appealing payoff for their services (as compared to coats or what have you), which would create an environment in which theoretically you didn't have to, but to get anywhere you would have to - this was how I felt when I first approached the old forum.
I think that it would honestly be better to let it be led by individuals who want to do it without anything being officially kept track of - like keeping a fictional ledger with their stories or what have you. 'Officially' upholding it would most likely give the RP cash worth as a bartering token and not just a plot aide, which can be a slippery slope. There are definitely bonuses to it, but I'm very hesitant, myself, especially when I know that some of the people who came here did so because they wanted to get away from that system.