Odd, I haven't seen more than a couple and I live and work in SF/SF Bay Area as well as still go to college, where most students who have Macs have Macbook Airs. I don't think I've ever seen the Macbook (12 inch with retina) at school actually.

The Pro has gotten a lot thinner lately. I've got a 2015 MBP (Retina 13") and it's only about 2/3 the thickness of my wife's 2013 MBP, and about half of my old 2009 MBP. I can comfortably hold it in one hand, which is one of the main reasons folks would buy the Macbook Air.

I've got an old laptop backpack that I used to use for a ThinkPad, and then for a System76 Pangolin. One of my first-world problems is that the MBP is too thin to fit snuggly in the laptop pocket; I usually throw a book or a folder in with it so it doesn't flop around. Compared to either the Pangolin or ThinkPad, the MBP is less than half the thickness.

Are you referring to Macbook Pro or Macbook (http://www.apple.com/macbook/)? From your comment is seems like your are talking about MBP and parent comment is talking about the latter.

i'm talking about the 12" retina macbook that has no glowing apple on the lid.