In a $100 package with the Contax body and several Kiron lenses keep it in perspective.
Most aftermarket lenses have no value individually but can add some value to a camera body + X lenses.

Kiron was considered to be one of the best aftermarket brands and made lenses for several brands.
Lester A Dine macros and some of the better Vivitar Series 1 lenses that are still selling for almost $100.00. Look at the 70-210mm f3.5 Series 1 as an example. It's an exception to the give away lenses that abound.