I have a similar story. I, too, purchased my first Pentax camera - Super Program, in 1983. I later replaced it with Z1-p, my favorite, which I will never sell. In 2003 I got *istD, the first Pentax DSLR and, since then, I switched to digital photography.
After using the “Super Program” for over 12 years, I ‘fell in love’ with Canon’s quiet FE-mount, so I used Canon for the next 20 years, and I was using Canon when I went digital, but 2 Rebels in a row went bad, so went back to Pentax in 2015.