I own one as well, its marketed as "dark stainless" by ford, sorry for using the brushed reference. Regardless of what its labeled, doesnt change the fact the are relatively rare in the aftermarket and therefore can demand a higher price than the black versions.
Good luck with the sale, I was just trying to help you out.
I never said you weren't, I just don't believe in false advertisement. They're not "rare" seeing as they're a factory wheel. Rare is something extremely hard to obtain. I've seen many many sets sell locally on Craigslist for over 1k without tires. I'm just trying to help a buddy out.