This.... G21s and 30s are the best bang for the buck.
Agreed.
I carried an old Gen1 back in the day, didn't shoot it much, but it never failed, this Gen4 I got new from CHLI has had the chit shot out of it, it has never once thought about a FTF, FTE, were I in need for a used/beater 45 ACP, I'd go Glock without any hesitation.