Lately, when I queue for a dungeon as dps, the queue is 20-30 mins.  Then  you get in an in-progress one so if you wanted gear, you might miss a boss or three.  Or like tonight, we wiped over and over and over until we kicked the warrior and healer who were terrible.  25 min queue, plus 45 mins in a dungeon, plus a ton of repair costs is not a good time.