I agree with shlord. DPS queue times are, at least on my realm, in excess of 15 minutes. Tanks and healers are almost instantly in a dungeon. It's because of this that I've rolled three tanks (DK, Warrior, Druid) and three healers (shaman, druid, paladin). I would love it if DB could farm these in an AFK fashion, but I know this won't be the case immediately. While I do get gear from these dungeons (HoT Heroics), I find that I fall victim to Blizzard's RNG (Random Number Generator) curse. I
always get the item I'm looking for on one toon while I'm logged on to another toon. I've been farming for the
Dragonmaw Blaster, which is my Survival hunter's BiS item (pre-raid) ever since HoT was implemented. I haven't gotten it on my hunter yet, but I have gotten it over three times on every other toon I've taken into these heroics, and quite frankly, it's pissing me off. There are other items I still haven't gotetn for other toons also, such as tanking shoulders for my DK and warrior. I've gotten them on other toons though. It always works like that for me, which is extremely frustrating.
With the Loot Ninja plugin and DungeonBuddy bot, I could set and forget while I watched TV, then possibly come back and have things I needed. I think it would be great to have DB farm these new heroics not only for gear, but also for JP and VP and not have to mindlessly LazyRaid them, or run them manually.