If I were you I would give MGS4 a try, you can get it for few bucks as a platinum collection (or it's american counterpart). I was very skeptical before playing MGS4, from the few video's I've seen, I didn't find it very appealing (never played any other game from the series before). Well now it's my most favourite game of all times, I have 3 different collector's editions and I've bought all the other games in the series, even PSP Go, to play Portable Ops and Peace Walker. I Love MGS! And you may too!
Other than that, Killzone 2, Uncharted 1 + 2, inFamous, Demon's Souls, Little Big Planet, God of War Collection, Valkyria Chronicles and Ratchet & Clank series are all great exclusive titles you don't want to miss.
MY HYPE LIST: 1) Gran Turismo 5; 2) Civilization V; 3) Starcraft II; 4) The Last Guardian; 5) Metal Gear Solid: Rising
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