The nice thing about the potential Marketplace is that you don't have to use it if you don't want to.....
I respect your opinion, Hyacinth, and totally understand where you're coming from, but I think this is a central issue upon which many people will disagree.
Simply by logging into the same server, what one person does affects every other person playing on the server.
To use a completely innocuous item as a very basic example (and something that I have no interest in), let's take the market for Rockhopper hides! Let's say that my favorite thing in this game is to come home and farm rockhopper hides and sell them for platinum. I do this every day and just love it! Then someone else starts doing it, but starts selling them for 50pp less than I am. Obviously that's something they can do, but, naturally, that changes the market and affects me and how I play the game. I may decide it's no longer as fun to farm rockhopper hides and move on to something else, or I may quit the game entirely.
Obviously, this is a ridiculous example, but I'm just trying to show that we can't simply ignore what other people do in this game, it's a game based on the community (as we've all extolled recently!).
I do think the marketplace can be utilized in a very good way for our server, especially if it helps save us from extinction, but I think we can keep at least a modicum of decency by limiting it to novelty items, UI upgrades and other peripheral things. I see a lot of comments about how much $$ SOE can make, but not a lot about how much of our ruleset we can keep intact.