If you are comfortable with Glock, stick with Glock. Why go out on a limb and try anything else? Stay in the comfort zone.
Hmmm, maybe they make cars, and refrigerators too.
I am very comfortable with my G19. I was planning on getting another gun soon if the fates allow it and would have got another G19 if the trade ended up happening. I just want a larger caliber to keep around the house and maybe rotate with my carry set up.