IMO a car that would be always clean and glittering would look like a collection car or a sunday car for sunday driver, fearing to really use it for what it's made !
It's nice to drive a glittering clean car, but as everything, it becomes boring if it's all the time the same !
I do like sometimes to have a dirty car, sometimes a clean one.
Dirtiness and dust means that an object has been used and that it has a story.
A permanent clean car seems to come directly out of the showroom, it doesn't live, it's "toc" (fake, spurious...)
What about the wrinkles on your face ?
Don't you like it ?
Do you systematically try to hide it ?
Obessionality doesn't preserve us from the Chaos, just makes it more threating, and doesn't postpone the end, just makes the way more painful !
So buy a black one if you like it, and don't worry !