I asked bungie for those that have the DLC if they could do something like this: For OG Destiny Daily Heroic: Ascendant Materials and an Engram For TDB Daily Heroic: Radiant Materials and an Engram For HOW Daily Heroic: Etheric Light and an Engram But what your saying for those that don't have the DLC does make a lot of sense. I haven't used my marks for anything really for a while. Be nice to have a new vender possibly in the tower you can sell the marks to buy things like etheric light, or maybe older gen 1 or 2 weapons that you actually liked at a discount price.