Speaking for myself, I can tell you that a HUGE part of the reason I stick with Ubuntu are their LTS releases. Those are just super important to me: more than most anything, I value a desktop that I don’t have to overhaul/reinstall on a frequent basis. Ubuntu’s five years of support puts it way out ahead of Fedora’s one.
(As a developer, I of course need to stay more up to date than the LTSes themselves are, but that’s what /usr/local/ is for. It’s trivial to keep those things up to date myself, and frankly, even Fedora would be too slow for me with most of that.)
[Note: I also cross-posted this comment on the blog itself.]