I enjoy metal guns (1911's, Beretta 92, etc.) at the range but for utilitarian use I find the plastic stuff much more useful.
For me it mainly comes down to weight. Carrying a plastic pistol is much more comfortable for me. Even for my night stand gun, being able to slip a lite weight sub-compact into a jacket pocket is much less intrusive than doing so with a heavy metal gun when taking the garbage out. I had a CZ 75D compact at one time which I thought would be a nice blend of compact and lighter. It too was too heavy... and didn't fit my hand well.
I once took my Beretta 92 out in the woods with me for a day in a good quality LEO retention holster. It didn't take me long to figure out it is a pain in the rear to carry around all that weight for a day. It became very evident to me why cops like their Glocks!