My Glock 17 is a great tool, I am starting to use it more as a dedicated "car gun" to keep in one of those car safes under my back seat.It runs like a top, the mags don't dent or rust, and I have 17+1 of firepower on demand, along with 2 more 17 round mags. Say what you will about 9mm, but 52 rounds of 9mm +P is nothing to sneeze at when it's coming in your direction at close range.......... I don't have to worry about it rusting, and worst case scenario if someone goes through the effort of breaking into my car, and then sawing off the thick cable that locks my car safe to the seat track, then I am not out a gun that I can't replace tomorrow.
Like was said above, poly guns are the ones you throw in the tackle box, keep in the car, use as carry guns.......by now all the "name brands" are proven, and the poly guns like the M&P, Glock and Ruger are durable, reliable and virtually maintenance free.
If I get a nick or scratch on my Glock, whatever..I could drop that thing on concrete and probably not care....if I get a gouge in the blue or dent the grips on my minty Model 29 I'm probably gonna lose some sleep over it.