Back to red dots, JHC and I were just having a discussion on his way home from the range. As to iron sights vs a dot, I feel there are three phases or zones.
Phase one is when you are committed to iron sights, and see a red dot as inferior.
Phase two is when you are in between -- shooting a red dot and irons, but still trying to sort out which is better. I was in this phase for three or four years. Someone in this phase might go to the range wearing a pistol with iron sights and, based on their session, go home wearing a dot (or vice versa).
Phase three is when you are fully a dot shooter.