Color forecast: I would guess that initially the people who bought the m100 right when it was released were head-fi-ers & other headphone enthusiasts that kept up with headphone news and probably closely followed the m100 development cycle. These people would probably prefer traditional low key black color scheme without any flashy highlights as their focus was probably mainly on audio quality. Regular consumers who read good reviews about your product and decide to get it would probably prefer something that stands out a bit more for the price range as the combination of stylish looks and SQ would probably be what would lead them to choose the m100 over other similarly priced headphones.
...or perhaps vampires (who would obviously prefer the red/black headphone color scheme) have more time to sit at home & browse the internet looking for quality headphones now that winter is ending & the days are getting longer.
PS: I really do love your vmoda m100 headphones, but please please release DEEPER (more comfy) EARPADS!!! I have been having serious comfort issues your m100 due to the shallow earcups, and that is the only thing keeping me from being 100% happy with them. Thank you for reading my post