Well, this is where your anecdotal evidence is going to get you into trouble. You are going to tend to remember the plays that support your point of view, and not think as much about the times when a batter hit into a rally-killing double play. Sure, there are going to be specific instances when a sac fly, or lack thereof, is the difference between winning or losing a game. But in the long run, the numbers say that a strike out is really not any worse than any other type of out.