I am afraid that you forgot the FX rate. The USD (US dollar) has lost more than half its value against the CHF (Swiss franc) since CH43TOF123617 was first sold. Here is a chart from 1975-2021, but you get the drift...By the way, I also noted in period Automobil Revue Katalogs (1970 and 1971) I happened to be looking at the other day, that the NY'er was listed at about the same it sold for now. (Back in the day it was around 32 thousand Swiss Franken.)