I have a 35s as well; I was made fun of for using one (you know you're sitting at a calculator that is 1000s of time more powerful right?). I still use it.
Just as a fun fact, some of the largest tractors made these days actually rival F1 cars in horsepower output. John Deere 9RX goes up to 913 HP for example.
My HP 35s sits between the 2 halves of my split keyboard. I use it multiple times per day. It's just faster for quick calculations as the UI is very well done and it turns on instantly.