I'm not quite sure the issue here. I can definitely understand why people aren't happy if there is a consistent silver and black (or 'space grey') option across devices. As for the other colours, you're NEVER going to have a constant palette across all devices, otherwise Apple would end up having devices available in literally HUNDREDS of different colours! The vast majority of ppl aren't the money-no-object/waste-is-no-object type of ppl who replace all their products every few years. should Apple just stick with e same colours fro all products permanently?