I've got a workstation - not quite that spec but not far off it. I work in game development, and we work on a multiplayer game. Being able to run multiple instances of the game is crucial, (game server, plus 2,3,4 clients, sometimes with rendering, sometimes without). On top of that, our codebase is gigantic, and takes about 40 minutes to build on our workstations (slowly growing). On my i7 at home, it takes well over 2 hours.