The other thread reached its max number of replies and wouldn't let me respond...so I am starting this one focusing on Infamous.
I'm not a hardcore gamer. I play Spiderman video games just because I like to swing around New York and I could probably still play San Andreas for a few hours without doing any missions...but I do like this game and judging from the reviews it is getting, I am not alone.'
The premise is:
A bomb goes off. You wake up in the aftermath unaware of what the F happened trying to escape ground zero before shit falls on you and you die painfully. Passing an electrical generator causes you to absorb the electricity (something you couldn't do before) and you start to notice physical changes.
The game involved finding out what happened, why you suddenly have powers...and it involves a Moral dilemma with most major choices that either make you more good and heroic...or more evil. Each path has a different set of powers and power ranges. You could effectively finish this game as a good guy and play it again just to be evil.
Unless you are some video game junky who plays games from start to finish over 40 hours straight, I doubt most will be finishing this in under a week or two unless they simply don't have anything else to do.