What has been the most you ever paid for a calculator?

[grsbanks]

(04-05-2019 01:46 AM)BarryMead Wrote:  In 1972 I bought the original HP-35 for around $400.00 US. When they offered to upgrade the firmware for free, I could not part with it during the school year, so by the time summer came around the free firmware upgrade offer had expired and I had to pay an additional $135.00 to have the firmware upgraded getting rid of the exp(ln(2.02)) bug. So the total cost was about $535.00

Mine still has that bug.

With so many of them having had the firmware update back in the early '70s, I wonder if the existence of that bug in a 35 nowadays actually adds to its value?