Hello
I have an HP/11C, which I bought new in 1985. I have used it on a daily basis for the last 15 years and it's only on its 3ed set of batteries. Its been dropped more times than I can count. It looks a little rough around the edges but it still works like the day I bought it. The RPN makes it very easy to use. I love the look on peoples faces when they ask to borrow it and they can't figure out how it works. And, when I try to explain it to them they just glaze over. Does HP make anything to compare to the HP/11C today?