if you're a cop that is issued a Glock, you are stuck with the Glock. Not everyone wants to or can buy lots of different guns.
I actually gravitated to Glocks form other platforms; ie; 1911, H&K.
On every one of my Glocks I polish the engagement surfaces, install a 3.5 connector and change the springs. Who has not done that to a revolver or a 1911?