I love games and play them occasionally for pleasure. If my friends like to play them, then we get together over one for a few hours. If anything, games have enhanced my social life; given me common grounds with some people I'd otherwise never know.
But I do have a friend who got addicted to video games, and he let it monopolize his time way too much; in high school, he had to drop down a grade because he played them almost all the time, even during classes. Strange as it sounds, for some people, I think video games can get dangerous, socially. It's like everything else, really: moderation is important.
Also, that much mountain dew is madness!