I think the beige was their brand badge, it took them a while to realize how many customers they lost because of that. I mean considering their lack of interest in RGB shows they only care about the performance part of their brand.
I don't know, I think the price premium is worth the peace of mind for a pretty vital part of your build, which you are going to use in your next builds probably. Then again I own a Seasonic psu, so maybe I'm biased.