Courses

[GoZelda]

Okay, perhaps it'd be cool if there's a sign at the end of each trading center, which opens up a list where you can see the courses. With courses I mean the value of several items.
For example:
diamond - 300 plat
inferno sword - 900 plat

It will take the average of table trades for certain items, but it will ignore certain trades - like 100 diamonds for nothing. This will make everybody who doesn't spend all his time at the trading tables and newbies aware of the prices of certain items.