[obican]

Well, most old cameras, lenses and systems as general were designed with a different mentality compared to what we have these days. Almost all of them were much more specialized in what they were meant for. Your Contax system is meant for one thing and it pretty much excels in it. Surely it doesn't have long telephotos or ultra wide zooms but doing what it's supposed to do, you wouldn't ask for those lenses anyway.

 

Now compare that to Sony mirrorless system for example, where everyone wants to have everything. It should please studio shooters, street photographers, hobbyists, test chart shooters, wedding shooters, videographers and many more. Good luck with designing, providing and enjoying that.