John, I don't think this is the beginning of the end. The reality of the situation is that some parts of the world want colorful cameras. They don't see them as less serious than black cameras. I would go so far as to say that even if a camera had all the right features for a buyer, but only came in black, there would be many that wouldn't buy it. Obviously Pentax has taken this to the extreme.....over 120 (!) color combinations for their latest....
Pentax brings a splash of personalized color to the K-50 DSLR - Images
a blue or red entry level model may rope in buyers who would normally be shooting with a hello kitty Lomo camera instead. The more the merrier. And of course, black is still available.