Back in the 80s, I was never without my 41C at my desk or drafting table (and I had a 12 too), but they eventually gave out.
Fast forward to smartphone era, when screens became about the same size as a 41, you run an app, and it’s just like the real thing! Wellll....not quite. No tactile feedback, and the ‘key’ response isn’t very quick, so you’re always making mistakes and having to start over.
Finally decided I needed to go back to a real, physical calculator, but all the current ones suck, and lack tactile keys besides. Well, guess what! HE hasn’t forgotten all its old fossils! HP-35 for like (coincidentally) $35. Does Everything a 41 will do and more for like 5% of what I paid for my 41, inflation adjusted. I love that thing!
Meant to say ‘all US old fossils’