Every console I've ever owned.
A list of every console/gaming device (excluding stuff like mobile phones with Snake and klondike etc. on iPod) that I have ever owned in the order that I first owned them.
Other than old PCs I still have own all the none hand-held consoles on this list (technically I sold my Xbox to my dad, but I can still use it), although not all of them are the original (on my 2nd 360 and 4th PlayStation, this one is actually a PSone rather than a PlayStation). I only wish I hadn't traded in most of the games I've ever owned.