Yeah, that worked out real well for Mass Effect and the whopping one piece of DLC you did for it, that was about an hour and a half's worth of content. I'm totally convinced.
This is the problem with DLC -- they just don't release enough of it at once to justify all this time it was in development. Them and Valve especially have fell victim to this majorly. I did like Bring Down The Sky, but it feels like it just didn't take too long to finish it at all -- no matter how complete the story ends up, when it's done, you're still lookin' for more different quests to do. Took me about 2 hours to get through the DLC, according to my saved games.
Also, the problem w/ DLC is....most companies just ain't treating DLC right. See EA, for example -- see Dead Space and Mirror's Edge for their DLC. Some games, add very little content -- maybe 3 new skins, 3 new weapons, and/or 3 new maps -- and that's it. Who wants to spend money on that if it isn't priced fair enough for the lack of content you're getting?
With Fallout 3 DLC's, these DLC's main quest can be finished in....well, what sounds like no time. Basically, a few hours -- 2-3 hours, from what I've read. Especially compared in comparison with the rest of the content the FO3 Vanilla game comes with as is. It is fine and all that every month, they are poppin' new stuff out -- but, are they worth it? Shouldn't they be say be releasing the DLC at a cheaper price than what they are charging? Of course, all of this DLC would just be better off released in one much bigger pack every say 2-4 months -- and charging a fair price for that amount of content.
It sounds like the only real DLC that can give you lots of time is GTA4: The Lost and The Damned on the X360. Of course, could also argue that games that release substantial amounts of content in the form DLC should probably be released on disc, anyways -- since in more likelihood, everybody who is a fan of said game would want THOSE kind of DLC's.
with the way companies and dev's are treating DLC, I'm not too big of a fan of this DLC idea. I still prefer the extra content in the form of true expansion pack-sized games. Think of expansions in size like say NWN2: Storm of Zehir, NWN1: Hordes, Elder Scrolls 4: Shivering Isles, BG2: TOB.
EDIT:
Oh, another extra note about DLC -- I think Sacred 2 has a great way of doing DLC. They just seem to put new features and new content in each new patch for FREE, adding a few new quests, items, and whatnot. That doesn't seem to be a rip-off at all. I wish more companies would support their product insuch a manner -- to really ensure that I keep a game on my hard drive, even well after finishing the game's main quest. I mean, really -- what better way to keep gamers happy?