As many here agree, it should be no brainer to call with AA in the early stage of a tournament. I understand that it is frustrating when they don't hold, but statistically this hand wins more times than any other hand. It is actually best case scenario for AA when you could double or triple up in the beginning of a tourney, since we should try to accumulate chips in the early stages. And don't forget, not always we get stacked when this hand is dealt to us, many times you get no action and have to settle with only collecting blinds.