I was an all-steel guy for most of my life since that's what I grew up seeing.
My first pistol was an all-steel Walther PPK/S which carried well, fit my hand like a glove, was extremely accurate, and literally never once malfunctioned. However, it was rather heavy at over 23oz unloaded, wasn't easy to carry during the hottest days of Summer, and honestly felt too nice to be carrying everyday as I grew increasingly attached to it.
Ultimately I semi-retired it in favor of a Ruger LCP which weighs substantially less at just over 9oz unloaded and can be carried in just about any attire. Sure, it doesn't fit my hand well at all, isn't nearly as accurate, and obviously isn't as pretty as the PPK/S, but I love it for what it is. Although I do still carry the PPK/S ocassionally.
I also carry a full-size SW40VE whenever weather permits, which in spite of being considerably larger than the PPK/S, only weighs about 1oz more unloaded, holds 2x the ammo, and is chambered in a cartridge which is at least 2x as powerful, 2.5x with certain loads.