Li Shenron
Legend
Depends on the the time you have available for it. There was period where I was just working too many hours to game regularly, a few cons a year was all I got. Today I have more free time, but I'm doing organized play, and while it's regular, it's also casual and you can have a different table every week.
My point is, D&D should remain a wholesome RPG experience, and it should not be downscaled to a mere combat game. It doesn't matter if previous D&D gamers have less time for gaming because they were students and now they're getting jobs and kids. Would you change the rules of your favourite sport so that the current professional players can keep playing while getting old, if that meant to affect everyone else?
D&D could always have been downscaled to combat only in your home games if you wanted to. Nobody ever forced every gaming group to have a story, interactions with NPC, or an exploration phase, just like on the other hand nobody forced anyone to have combats if they didn't want to. A well-balanced D&D offers ALL these to anyone who wants them in their games, but doesn't penalize too much (beside perhaps some characters ending up somewhat weaker than the others) a group that wants to focus on some aspects of the game and reduce/remove others. A D&D heavily shifted towards one aspect only does risk penalizing quite a large group of people... just check the results.
As a matter of fact, I have no time for gaming now, and had only little of it for the last few years. When I had it, it was always one-night only things, so we just played something completely different (MtG, board games...). I would have also played 4e combat-only sessions if they came up, but that's pretty much because when we tried it at the time it came out, that's what seemed to us the game was good for, but not much else.