Ok, I really don't think this needs to be an ego thing. If something's useful to you great no harm in that, my doubt was in the difference that they make. I obviously worded my post badly in general. Clearly people feel they are strongly beneficial and that's cool with me.
In a bit to try and bring this back to a positive thread, perhaps people that don't use them could offer tips/techniques on how they manage without them?
We are all atheists about most of the gods that societies have ever believed in. Some of us just go one god further.