i've had the same experience for years, and not just with black men. any obviously ethnic men seem to lower sales unless it's an ethnic site - asian and black guys don't seem to sell as well on general sites who sell great on asian and black sites. same applies to very latin looking latin guys, although latin guys who don't appear overtly latin guys seem to sell the same as white guys.

our biggest design annoyance is that out of our 3 best models, 1 is middle eastern and 1 is black and even though they have great big gorgeous muscular physiques, are handsome and even nice, they undersell less impressive but white models