Without NN won't ranking pages by "page speed" simply enhance the benefits of purchasing "fast lanes" near end points (on previously dumb pipes ;-) to those willing to do so?
Using a CDN is one way to speed up your site, but there are lots of other important steps like reducing dependencies and compressing your resources.
(Source: I used to work on mod_pagespeed at Google, now I work on other things there.)
Now get off my lawn while I load winsock.