Less value than Beths Horse Armour
Reading the description you could be forgiven for thinking that Wardens Keep rewards the player for completing it with " a base of operations" making it worth getting. What you actually get is a chest, a few armour pieces and two traders. You can't even enter the Keep once you've completed it, the door is locked. There is nothing that interesting in the dungeon crawl that you must complete to get your traders and chest. Enter a room, the dead get up and attack you, you kill them, that's about it. There are some notes and the like laying around that give some history to the place but nothing like the advertised " discover what really happened to the Grey Wardens of old and what led to their expulsion from Ferelden" The advertising is misleading and doesn't reflect well on Bioware. My Mage also got a couple of spells, one was shit and the other one was broken.
Dragon Age is a fantastic game, it's a shame they've let themselves down with the DLC. Keep your money in your pocket and wait for the superior community made mods to appear.