That's strange, and you're right, not at all fair. I'd tend to think that blk/white would be more wanted and adopted out quicker, but reds are definitely getting to be more popular I've noticed. Colour popularity shouldn't matter though. I personally prefer reds and sables, but that doesn't mean I'm going to choose a dog based on colour if I wanted to adopt a BC. Are you sure they're purposely pulling reds and merles? Maybe lately the blacks just don't have nice enough temperaments or something?