Talk:Archive Maps/@comment-12838706-20150517002117

If you don't turn in a discovery for a map at is available at that archive, then you won't get that map. Its useful when you are targeting a specific map (could be high level), by making sure you don't get low level junk maps. Same is true by just having map in inventory, but it takes up an inventory slot. So this method can save you inventory slots by not getting maps you already discovered.