Well, the servers went down the other week making AC2 unplayable for a while.
I'm on a laptop so I could play most games wherever, but if I need an internet connection thats a big restriction on that.
It also gives a limited life to the game you legally bought, until Ubisoft stops support or goes out of buisness, it's not likely to happen soon but will happen eventually and I like to play old games all the time

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Not gettin AC2 anyway, slightly to do with the DRM, but more that if I felt like playin AC I'd just play Hitman