I'm new to Sigs and I can't quite see what it is that makes the P226 worth so much more than a Glock or other similar pistol. I was talking to a friend that used to be a cop that traded his P226 for a Dan Wesson 44 revolver. I was surprised that they were that valuable even used. I'm getting a Sig 1911 Extreme. I know Sig makes quality firearms but what makes the P226 so much better?