Value of HP28C vs 28S?

[Thomas Radtke]

(01-30-2015 03:00 AM)Den Belillo (Martinez Ca.) Wrote:  Someday, someone will 3d print these but that day wasn't yesterday and it's getting late today.

The case can break, too, which would be fatal as I heard. Don't know myself, as I have two intact clamshells and a spare door somewhere. But usually the compartement doesn't break if you're careful. Changed batteries many times in my 18C and 19B.

Very nice looking calculators, if only they would open to the other side like the Casios.