Someone who buys their games based on the principle that they should get their moneys worth within a few months of the purchase could easily overlook some bugs at the beginning.

People that spend $20 or $40 to go to a movie for 2 hours can't be that worried about maximizing the value they extract from a $60 game. I do look at it from the standpoint of not wanting games to work like this, but I can see how someone might not care much, especially if things smooth out soon.