I'm not sure I agree with the point on replayability. Yes, it's replayable due to the scope of the game, but I don't think run-to-run there's much that's new. From what I've seen of other people playing Skyrim, everyone pretty much converges on the same sort of end-game build where you multi-class in archery, melee, and magic. I think the game would benefit a lot more in replayability if there was an actual class system that prevented players from deciding, "Oh, this spell does more damage than X that I was using, I'll use that," and so on. I'm sure that there's a mod out there for that, but -- contain your gasps -- I really don't care about modding Skyrim so that sort of classed replayability is lost on someone like me because I don't care to say "Oh, right, I'm not supposed to pick up swords because I want to be a mage."