Replayability is way too overrated these days, especially since it hardly works well. What have I heard...DA is going to be 90 hours long? Holy ****! And then there are 6 different Origins? I doubt these will make an actual big difference. Maybe a different starting area, some specific starter quests, but after an hour of gameplay, it melds together to the same path.
Anyways, I rather have one playable character/Origin that gives me a hell of a time for one playthrough, rather than having 6 that are all the same. Because I hardly replay games these days. There are just too many other games that are waiting to get played.