Marc,
That's a weird analogy actually. Cartier-Bresson and many other famous photographers didn't have the latest and greatest lenses and equipment and yet they made many great photos. And they made them very often handheld.
It's always better to have the equipment you can "grow" with obviously. It makes little sense to buy anything that wouldn't last you many years. With zeiss and leica any photographer gets this assurance - "no matter how good or bad you're as a photographer, our lenses will perform great". With many other manufacturers (that don't even perform real tests on lenses leaving their assembly line), you get no assurances whatsoever. That is essentially all the difference there is.
Now, about Contax bodies - you're right. In fact I have been looking for Contax S2 for that precise reason for a very long time now. I'm thinking of maybe getting one of the last manufactured Arias as well. But I'm still thinking, so we will see.
By the way, I realized I made a silly mistake. I don't have Distagon 35mm f/2.8. What I have is Sonnar 85mm f/2.8 (I guess I somehow copy-pasted and modified one line without realizing it).
So, the full list is:
1. Distagon 28mm f/2.8
2. Distagon 35mm f/1.4
3. Planar 50mm f/1.4
4. Sonnar 85mm f/2.8
5. Planar 85mm f/1.4
6. Sonnar 135mm f/2.8
and Mutar III.
All lenses except Planar 50mm are in "excellent plus" condition using KEH grading as a guideline. Is't a subjective description anyway, but I think it's fairly accurate. Some may be "excellent". Planar 50mm is probably "excellent", it has seen a lot of use (glass is clean and aperture works, but there are dings on the barrel, mount shows signs of use, etc). Sonnar 135mm was bought about a year and a half ago brand new, so it's in like new condition because haven't used it much and it comes with a box. Planar 85mm and Distagon 35mm f/1.4 have boxes as well. All lenses have pouches and both caps obviously.
Since I haven't decided yet if I want to sell anything, make me an offer first, that way I will be able to see if it makes any sense to me
Thanks.