While I can share your romantic vision of capitalist trade to a certain extent, the condition for me would then be that I get to choose and switch my boosted goods so at least I have some influence over how well I do on the market.That's the beauty of it @Mullebutz. Everyone will have a slightly different opinion of how much each thing is worth and they'll have to make their own decisions. Hopefully that will create an interesting split across the traders. Perhaps some people will offer something like 12k gems for 10k marble.
What I'm hoping for is for there to be no "tiers" at all.