[Hermes]

Those items were actually an Aurum Donation item, the Woodland Archer. One of the older ones, though. I can't remember what month ^^;

And....well, as more people join the site, there are more items bought each month, but also more demand for said items. Demand outweighs supply, so prices go up, and up. If ever supply of an item outweighs demand, prices go down

So, say, the items from the Taskal War event: The easiest ones to grab back then aren't worth too much now, but the jackets cost actual currency, and there were(theoretically) less of them, so they cost a lot more.

This example can be used in a real life economy as well.

While demand for oil is high, but supply is low(er), price will continue to go up and up.

But, say we find a steady alternative to it, and demand goes down, then supply will steadily rise as people buy less and less, and eventually supply will outweigh demand, and prices will go down.