Thanks so much averagejoe. I have appreciated your posts, particularly the one about the genesis amd history of the LD. Yes, all hardware scratches and for me minor scratches usually just feel a sign of normal wear and love of our bags. The matte I was more concerned about showing white or bright underneath black, but it seems not to be a big problem. Glad to know Dior will replace if it is a large problem. And I was surprised at ruthenium hw as well - I looked this weekend and no ruthenium listed, and when I looked back yesterday it was there. A new option apparently.All hardware finishes can show scratches over time. Even silver hardware, as it is often plated to give it that incredibly smooth and even finish. It doesn't matter if it is made by Chanel, Hermes, or Dior.
Dior can replace the metal hardware if it becomes very scratched, although they may charge a fee. This includes the matte hardware.
I really like the new ruthenium hardware on the black lambskin, although the ultra matte black is beautiful as well. Perhaps the ruthenium one is a better buy in my opinion, because it is essentially the classic Lady Dior, but with a surprising hardware choice.
Now the hard (fun) part - which to choose! Really like them both (and of course many more!). Thanks again.