What if in every zones there was a Traveling Merchant that wanders the zone (lets take Mor Dhona for example) selling his wares. His wares could be rare items (like Atmas in the zones where you get them, minions and mats) but the currency could be some zone specific money (like Mor Dhona Stamps, Central Shroud Stamps). Now the question is: How would we get those stamps? Make daily quests in every zones, leves and fates give them.
Thoughts about it?