Many years ago I searched for an HP-32sII; apparently they were still in good demand with some people asking up to $400 for them! I think I finally won an auction for $180?
I needed it to work with this cool angle setting/reading device which is super accurate because it uses a digital caliper and calculus to basically layout a triangle with the tool to obtain the proper angle.
It came with 8 formulas that you put into the HP32sIi and a cheat sheet for knowing which memory location you needed to access.
