Chart that reflects item price over time

Currently, when one wants to buy an item from the baazar, the only relevent information we have access too, except for the price, is the "similar listings" that shows the other similar item currently available to be bought and their price.

However, regarding the moment, more or less are available and at a higher or cheaper price. I suggest to add a chart that reflects the price of the item over time to help people keep track of whether or not it's a good time to buy.

I think that this proposition will be even more fruitfull when the number of a said item minted will rise as more and more got…