[Gothika]

The system your talking about doesn't seem to work in my eyes. If items can only be sold within a certain price range then that will make the economy totally developer based, since the developer must decide on the lowest/highest values the item can be sold for.

On GK the economy has always been player led, thats why It goes up and down so often.

Not to mention, this system dis-allows you from giving someone an item for free. If the item has a set sale value then you would be unable to trade for anything but that value. That would include giving a friend a gift, EM's giving out prizes and so on.