First off, this may contain spoilers!
Our kin has tried for a couple of weeks to take down the mighty dragon and after learning the fight and battling the fight-ending-bugs we finally got him down.
As I stood there /rolling on all the wonderful lootz I looked up into the half-lidded eyes of this mighty dragon and wondered "why?"
According to the quests that got us there:
So Saruman is powerful, we need better weapons, this dragon has better weapons, kill the dragon and take his weapons!Saruman is growing in power by the day... We simply do not have the power to stand against him, but I believe I have found a way... I found a weapon. If there are more to be found, then we might be able to stand against the Wizard... Head into the eastern hills of Thrór's Coomb and seek out this cave. If you find it, venture within and see if you find the weapons and armour you seek.
To me, this seems like a very out of character thing for us to do... I can't recall another instance in this game where we went out to kill something just for loot.
Perhaps there isn't enough back story to vilify this dragon. If he was going around desolating villages or doing something other than sitting in his cave atop his pile of gold I might be less sorry for killing him.
I was hoping at the end of the fight to see him fly out through a hole in the roof or something. Am I alone in this?