What question is this? You could ask the same with: are you over 20 and are/was a PC Gamer?
But yeah, we (my friends and i) don't do many LAN-Parties anymore. We have at least one per year, between christmas and new year. But it is AWESOME. We going completely into nostalgia-mode; We play games like Half-Life, Doom, Duke Nukem 3D, Starcraft, Age of Empires... its cool.
But i raise you even. Not only have we played LAN.. no i have even played with a null-modem cable. (connecting the serial ports for ultimate speed *g*)