I also prefer Physical copies and will buy those 99% of the time for full games, but I do own three Games on Demand games. None of which I've actually played even once yet. Fable 2 (Got it free as part of a glitch) Portal 2 (Bought the other week in the Black Friday sales) Darksiders (Bought a few weeks back in the Halloween sale)
I have a couple. Halo reach resident evil 4 Assasins creed 2 Assasins creed brotherhood Tales of vesperia
I agree on the whole "physical copies" a game. However Id rather buy a physical copy of a good game that I will come back to in the future (MGS collection, Dark souls,) and just buy a digital copy of a game that wont last long because of the replayability (Call of duty, halo, ) I just got vesperia because it was cheaper , Ill buy the Disk version later. I love this game.
GT: Halllelujah ( No I'm not religus I watch too much anime :P ) (O_\) .............I'm a very shy boy ...