Gamasutra, Bethesda VP Pete Hines shared his company's philosophy regarding DLC. After crafting plenty of DLC for Oblivion ranging from small quest packs to the full expansion of Shivering Isles, Hines says that the team decided to focus on small, but still significant, pieces of downloadable content for Fallout 3. According to Hines, Bethesda decided to shy away from full expansions like Shivering Isles because "those things just take so damn long to do."
The goal then was to create enjoyable DLC in "smaller, digestible chunks," which led Bethesda to use the Oblivion DLC "Knights of the Nine" as the model for Fallout 3. This model, said Hines, is "substantive and it adds multiple hours of game play and new items, but we can do it in a time frame that allows us to get it out without waiting forever."
What say you, Fallout fans? Do you prefer the small, but frequent DLC packs, or would you rather see a full-blown expansion a year from now?