An ad? Also, I actually do enjoy playing Quake or Quake 2 when I'm waiting on people. It's great for music, movies, music videos, games, works as my calculator, acts as a voice recorder, lets me chat over MSN Messenger, browse the web, print, take notes, keep important events, and even read eBooks. It's faster than a desktop at what it does and goes a good four hours with the standard battery. You can buy one that lasts twice as long, though.
It cost me $430 last year. It's a good value.