It's funny how Space Grey is far and away the most popular color... I've only had space grey laptops for the past 4 years, including my current 16", and generally phones.
But for these, SG and the Pink were the two colors I immediately knew I didn't want. Looking at it some more, I can see the appeal, it just seems to hide the industrial design of this somewhat (unlike an earlier poster, I like the 2 tone look of the other colorways). Went back and forth between the silver and blue before settling on the blue, although I feel the green looks supercool with the light mint colored headband.