Some games allow you to have collections of various tchotchkes you can pick up as you explore; e.g., different colored gems, leaves, shells, etc.
EQ2 had a really nice system that allowed you to "trade in" your collections for rewards (not awesome items, but something).
In Pantheon, this could dovetail with the perception system, where increased perception could make it possible to find the more rare items in a collection.
Anyone think this would be worthwhile?
EQ1, EQ2, SWG, SWTOR, GW, GW2 CoH, CoV, FFXI, WoW, CO, War,TSW and a slew of free trials and beta tests