I support your ideas.
I have seen some instances where a quest has been referred back to another quest item that has to be used. If you don't have to item, you have to check with Dirango, talk to an NPC who gave you the item in the quest, or have to play the last part of the quest (IE: rekill the monster) to get the item back. Some items have extra features that I may have forgotten about. I'd be nice if you could take a quest item to the bank and find out if it has any future use. In some quests, but not all, it'll tell you in the wiki if this item can be dropped.
Music is the Heartbeat of the World
Let's flip a coin; heads I win, tails you lose. Fair enough?