I was thinking of some kind of auction or preordering, but I guess it would be much easier for you merchants to just post a list of items you are planning to make. Maybe there could be a poll, such as 'This months most wanted item'. Sure, we would see a lot of items of that kind, but that would also decrease the need for that kind of items and new items could be created next month. It would be sufficient with a list of 10-12 items to vote for. I guess what you want is some kind of "quantified" wishing well, and that is what such a poll would be. Merchants who dont sell at renderosity for a living will still create items just for fun. There are no flaws in this system :) ehhhhrm... You could also have a search spy that lets you know what people are searching for.