Physical. PS3, Wii, Gamecube, N64, DS, Gameboy Advance, PSP are all the systems I have. Mostly because I prefer to actually own things. (It applys to manga, too. Give me a real book to an electronic copy any day V:) But I don't keep the games in their cases and lined up.
Big discs are kept in a CD holder for when we take the system somewhere else. We have 3 holders for GC discs. And I have a 'game purse' for my GB color and advance games, as well as my DS games. The PSP games are the only ones I keep in their casings, but I don't have nearly as many to carry around as the others.
So if I wanted to, I could take all of the games and systems in just a couple of boxes, a purse, and a bag. :V
1412 Phenomenon: When rational people begin acting like mischievous phantom thieves/magicians
3DS FC: 1504 6005 4982
/\ (O_^) Kaitou Approved