Yes, I wasn't citing Ken as an authority, just showing prices have moved on a little since 2014, if they were true even then. Screw AF was anachronistic when Canon had already moved to electronic autofocus, as Nikon found to their cost. The G was technologically somewhere between a last hurrah and a promising infant.Ken Rockwell floats ideas like leaves on a pond.
No surprise Contax wide angles adapt less successfully to digital than longer focal lengths. That's true of film era lenses generally. Various theories on the reason why, last I heard it was the thickness of the glass protector over the sensor dispersing light. Someone (Leica?) introduced a much thinner screen and performance of old lenses improved.

