We may never know how many crimes have been deterred by good guys carrying their holstered pistols in plain view, since criminals don't normally report aborted crimes.
The practice of open carry, sometimes abbreviated as OC'ing, is done by only a small percentage of weapons carriers, as most good guys prefer to conceal their weapons.
Photo by Lucio Eastman
I have nothing against anyone who prefers to carry concealed. Carry as you wish. Live and let live. The point is to carry and be ready to exercise your human right to not be a victim.
Whoever said that the best way to exercise your right to not be a victim, is to whip out a cell phone and call someone else with a gun is a complete fool. Police can't be everywhere, and real adult men and women understand that one does not delegate the safety of one's life and those of their loved ones to others.
I support the right of open carry on the principle that I should not be forced to appear to be unarmed. Most criminals prefer easy targets. They don't want to work hard for their spoils. Ninety-nine point nine times out of a hundred they will choose someone that appears to be unarmed.
I want to clearly appear to be armed.
I'd rather deter the crime in the first place with my openly carried firearm than be forced to draw from concealment and shoot my armed attacker.
Here are some real life incidents that involved good guys carrying openly who deterred crimes and in one case saved lives after the crime was in progress:
Bank robbery deterred by an open carrier of a holstered pistol: http://www2.vcdl.org/webapps/vcdl/vadetail.html?RECID=1022854
Store robbery deterred by an open carrier of a holstered pistol: http://forum.pafoa.org/showthread.php?t=147404
Open carrier able to draw quickly to shoot robber that had shot the store owner:
Kennesaw, GA - Waffle House robbery deterred by two open carriers of 1911 .45 pistols: http://forum.pafoa.org/showthread.php?t=91303