I'm not asking for 10 hour games. I'd rather 30-40 hour games (like Mass Effect). When I say hub, I mean games where you spend a long period of time in a single area exploring, getting quests, doing quests in the vicinity of that area, etc. before progressing the story to the point where you then move on to a new area. Some games do this with acts that keep in that one place until the act is complete, others allow you to explore a limited amount of locations until you need to move on to new places as the story demands.