I think we as people will always pay for "different".
Black pearls, black swans. The human mind is intruged by those that are different, even the best selling comics/movies are "different" (X-men, Spiderman, The Hulk etc) I believe it makes our mind run wild at the thought, and those that can afford it will take it.
I dont know if I have a problem with it. I mean golden wildebeest were first seen in 1930, I believed they were then called "vos wildebeest" by those that saw them. My grandpa has never stopped telling us about the black impala he saw in the 50's in Namibia. If memory serves right, Dr Dirk Neethling caught black impala in the early 90's in the Waterberg area and started breeding them with normal impala to get splits and so it went on. At around the same time a gentleman by the name of Barry York bought a farm out in Madikwe area and actually found some of the golden wildebeest running around on the farm and again the same happened.
So whether or not I am against it, I am unsure, I dont hate them put it that way, some of the colour variations are actually beautiful in my honest opinion - but they are expensive, there is no doubt, and those that can afford them will probably hunt them at some stage, and the more that are bred, the more the price will fall and maybe more people can afford it eventually. Its the same as the sprinbok colours (four as far as I know) and they are now affordable, and now many hunters are after them. I know I wouldn't mind a black impala, or even a golden wildebeest (a true one, not the red stuff some are breeding now...) in my trophy room one day.