1. It's free.
2. I wont have to buy a gift for my smug cousin, who killed my pet lizard/I don't want to get a present for.
3. It is one of the best games of all time.
4. It's kind of important to the story of the second game.
5. You can see me gouge out my eyes
6. If you post on this forum, but were too cheap to actually buy the game, and took the easy way out by pirating it (you know who you are
7. You may have the chance to evolve into a higher being, and have your mind fuse with the game
8. It will keep you entertained, instead of buying a next gen console, and $60.00 games for it.
9. It means that you have a social life, because you have a face book, and that counts even a little bit.
10. It means that you'll grow wings, and spray guacamole from your eyes.