I think it really depends on how gaming is approached. I understand that for some it can be really unhealthy, and there have been times in my life where I've been consumed entirely by games.

That said, it doesn't have to be that way. I've always loved games that were able to immerse me in a story, in that manner many RPGs with set storylines and endings could be compared to reading an epic novel. I also love multiplayer games, whether it be co-op I can play in a room with others (about to go try and finish Yoshi's Wooly World with my girlfriend)... or an online game where I'm playing with friends often hundreds or thousands of miles away. This latter type of gaming has really been helpful over time as I and friends have moved away. Rather than hanging out in person, we'll hang out on GTA Online, some Tom Clancy game, Mass Effect, etc.

It really depends on the person and the game. On one hand it can contribute to the isolation many feel in this digital age, but on the other it can do the opposite and bring people together in spite of it.