boogie2988 made a nice rhyme about what its like to be a gamer.
Non-gamers would not understand what its like to play an online video game, or even a single player role playing game. Modern video games open up a whole new world. Games like Left 4 Dead, New Vegas, Skyrim, Left 4 Dead 2 open up whole new worlds to gamers.
If nothing else, video games are a great way to relieve stress.
My first PC video game was Command & Conquer for DOS, but it also ran on Windows 3.11.
My second PC video game was Doom.