Glock's are yesterdays news...
I bet you got wood when you looked at the muscletech style advertisements they placed in the magazines circa 1997 about how they bury it in mud and freeze it in ice.
haha those ads rocked!
Glockes are yesterday's news, sure. But they still get the job done.
New stuff is nice, but it's untested and you never know what flaws will emerge. Maybe it turns to a cheese grater against your knuckle or thumb when you crank out 1500 rounds in an afternoon. Maybe frame is unreliable after 8 years. Maybe something I cna't think of.
I love guns, but not because I'm a collecter or because I enjoy showcasing them. My guitars are for that

The gun is just a very very nice tool you pray you'll never need to use.