Which games have you bought a limited/collectors edition for and why?

[Myak-04]

If there's a game that has the option for limited edition, then I'll get it..... because I like to form clutter in my room XD.

To name a few....
- Elder Scrolls IV
- Halo 3... well, basically every halo game
- Fallout 3
- Legend of Zelda: Phantom hourglass (came with an awesome DS case.. how could I say no ^_^)