I just finished Metal Gear Solid 3 for the 2nd time, and let me tell you, that is one heck of a game!  Some of the best graphics,  great gameplay, and the reason I played it over again...*drumroll* the storyline.  The best story I've EVER seen in a game before.  So deep that I think they should make a movie out of it.  I'm still thinking about getting Subsistence, but the main reason I would get it would be for the online multiplayer.  If you havent played Metal Gear Solid, you HAVE to play it.