At the same time, you can't feel the sense of achievement in a MMO like you can at the table because of the scripted, pre-plotted nature of the story. You're, no matter how harrowing and exciting the experience was, just another guy who completed the same quest a thousand other players have completed before, and because you are in a shared world with these thousands of other players, it is imminently obvious that this is the situations (as opposed to an adventure module, where while you will have completed the same adventure many other players completed, you have, generally, completed it in isolation from those other players).