I miss LAN parties... Duke Nukem 3D, Doom, CS, Diablo, Alien vs Predator 2, Quake and the successors of those games. Good times. Online is nice and all, but nothing compares to playing the night away with friends in one room
I played that a few times with friends/cow-orkers late at night in an office where I used to work. I scared the hell out of one guy when I just walked over to his office when he was playing as a marine. He was so keyed up thinking about sneaky aliens and it was so dark that he didn't see me coming. I wasn't even trying to scare him, just walking over to talk to him.