I think I fall in categories 1 and 3 xD
I understand AAA games cost (roughly 25-50m this gen) and the cost will increase the bigger and graphically better they become but picture how much profit they're making per unit already?
Advertising is another factor but regardless, selling 4 million copies of a game at $60.00 brings in 240m. Even after advertising they're making well over a 100m in profit so I think charging more than $70 is just ridiculous.
That's my take on it. What's yours?