An opinion piece via eGamer in which the author lists and discusses various story DLC packs for recent games, and highlights times when they either work or don't work, within the relevant games.
Quote: "Some games are better off without story DLC. Others have universes that work well with it. This is just the way of the world and if we could all afford it, I’m sure we’d play every single story DLC we could, for every game we own. But what if it ended up dulling our initial experience of whatever game? Or what if, by the end of it, we were left realising that it didn’t really add anything substantial and we only really played it because we wanted more of that game? "