Joel,
I don't know if you have ever owned a Black Car but it is very much the same way. When New, nothing looks better, but fine scratches and swirling will occur by keeping them clean. So to answer your question, yes they are more prone to revealing scratches in their appearance.
The Walnut is much more durable and do not show swirling. Anyway, you could always try cleaning them with a microfiber cloth only but I have never seen a pair that did not have some evidence of swirling in the finish.
And yes, I recently owned Walnut Concertos and now own Walnut Grand Pianos. They are wonderful speakers. Good luck.
Chris