Ok, so when at the open air markets on Red Sector while browsing you can appraise an item. This gives you a brief description of what the item looks like. When you have an item in your inventory and inspect it you get the specifics, weight, size and approximate value. Where I see an issue is that when using the appraise command, even someone who is adept at Trading cannot see the approximate value of an item.
I think the appraise command should work more like a combination of the two commands. Give the brief description of what the item looks like as well as it's approximate value. That way someone who has dumped UE into the trading skill won't have to guess whether or not they are actually getting a good price on an item(especially ones that don't have an easily reached reference point.)