Even if you were to say a new raid is only worth $10 (I happen to think it's worth $20), Rise of Iron is still great value considering your other $20 is getting you: A new social space New Patrol node New Arena At the very least 5 new gear sets New story missions Two new weapons foundries (w/their gear) Exotic weapon skins Armor skins Vendor restock 50 Light increase New exotics Returning Y1 exotics Returning Y1 class items New Crucible maps New Crucible mode And anything I'm forgetting. That's way more than what we got for $20 with TDB or HoW.