» Fri Sep 14, 2012 11:44 pm
The DB might not be an organisation which has any morals, but on an individual level a lot of the members aren't bad people per se, just professionals who do what needs to be done. You'll learn to like most of the people you work with, which makes the questline a very annoying and tragic one. Not as bad as the Oblivion questline in that respect, but still one which seriously calls out to me to leave the questline started but unfinished.
Even if you're playing a high and mighty paladin, you might just want to take a day or two off, keep a savegame handy so you can go back to the time before you joined, and indulge yourself in the questline. I completed it in about two days, enjoyed it thoroughly even though I hated the ending, and reverted back to the earlier save as if the whole thing was a dream. Doesn't stop me thinking hard about the whole thing whenever I encounter people or locations in the game which are related to the questline... and who knows, maybe my heroic character might one day find himself in the company of arguably the closest-knit guild in Skyrim once again. Other guilds lick your boots and hail you and respect you when you find success. The DB just.... accepted you the way you were, and nurtured you - that's what makes me unable to forget them. Try it once and you'll understand.
If you're a collector of in-game items you also get a few nice unique items. The armour looks really good (even on companions), you get a unique book for your bookshelf.. and of course a cool horse. Choosing the "Destroy the Dark Brotherhood" option doesn't really destroy the DB too, as the two most important figures in the DB questline aren't in the sanctuary yet, and with them still alive and untouchable the DB will just start again elsewhere. All you accomplish is destroying that particular sanctuary and all the cool people in it.