Ummmm, they are despite the fact that most are just in total lust over glocks. Serious folks run HK's and SIG's, don't get me wrong I've had glocks and never had an issue one but I prefer HK's and SIG's over glocks. Price probably has something to do with it as well, SIG's are not cheap, most people feel $600 on a gun that always works is smarter than $900 on a gun that always works. I prefer the feel of SIG and HK for that matter, I also like the quality of both of them over and above any glock that I've had or shot.
Si vis pacem parabellum