I've never shot a comp gun, it's not something economically feasible to build here.
It's the only Glock I have. The Glock was an accidental choice for me, I was not ever a Glock fan, or a fan of any plastic pistols in general.
I used to carry a Security Six, for a bit over 20 years. In the last six years or so I got involved with IDPA, and bought a few semi-auto pistols for the sport, in the calibers from 9mm to .45 ACP, but no 10mm. At that time, I looked at anything with a plastic frame with great suspicion and much reservation, especially when it came to carry.
After shooting the semi-autos for a few years, I decided I had to have a 10mm, and the only choice for me in this country was Glock. I got one, used it a while, got familiar with it, and started overcoming my prejudices.
Last year, I started looking at the semi-autos I had and thought that it wouldn't be a bad idea to retire the Ruger, and maybe wear some plastic.
And that's how I ended up with the 10mm.
A big factor in the choice was that the 10mm recoil handling is very close to .357 , it fits my hand like it was custom made, and I can shoot it as well as my Ruger. I like the fact that I can carry two speedloaders worth in one mag, and have another mag on the belt if I need it.