My group falls in the #1 category. we average about 50/50 between ingame and outside of game activities.
Currently we have 7 members, of which one is semiretired due to the fact that we all live in Des Moines and he moved to Toledo, Ohio last summer. We still talk to him on a regular basis, and he will probably rejoin us in the near future once his job takes him back this direction.
5 out of 7 of us have been gaming together since about 1987 (including our friend in Toledo), and the other 2 are my brother-in-law and his friend from work. A couple of guys have gamed together since 6th grade, around 1983.
We spend alot of time together outside of gaming, maybe not as a whole group, but definitely we try to involve everyone in our activities. We go to each others weddings, go out to drink beer(or alternate beverage), go to movies, etc, etc.
Just this last week alone I spent probably about 8 hours with one friend and his wife at the bowling alley hanging out and having a few drinks. I went with the same friend and my brother-in-law to a movie Friday night. I spent Saturday evening drinking beer and playing a game of Civ2 Multiplayer with my brother-in-law, while discussing my campaign. Every other sunday 3 or 4 of us from our group play basketball with many other people. This weekend we happen to be gaming, and going to one particular friend's house who recently had a baby (err...his wife actually had the baby, just so ya know!

), and we will be grilling out food and spending time with this friend and his family as much as we are there to game.
Bottom line, many of us are over 30, and have many other things we can occupy our time with, yet we keep coming back to gaming and each other. Sometimes we have more fun on a particular night with the social aspect of the game then with the game itself, and for a couple of people, that justifies it even more.