Some very good points raised, which some people do seem to forget.
Everyone has their preferred package, and they can fully justify why they prefer it over package "x", thing is, your layout is only as good as you are, you can buy Cadence or Altium packages but still not produce a good layout, the software is fully capable, but the designer is not.
People scoff at the thought that Eagle can make something as large as a PC Motherboard, in all honesty there is no reason why it can't be used, and it probably is for some. Just because YOU wouldn't WANT to, doesn't mean someone else wouldn't or can't.
Eagle has some nice features, KiCAD and DipTrace are bringing new features out all of the time, some packages you will just "click" with, some you will loathe using, but it doesn't mean, just because you don't want to use it, that others don't or shouldn't use it.
Everytime I get asked the question "which package is best", there is no right or wrong answer, try them all, choose which one is best for YOU, if you get into a rut that only something like updating to a newer package will resolve, then do it, doesn't mean there is something wrong with the previous package, just you have reached it's limits.
I use Altium and EAGLE, and I must say that I have seen some very impressive things done with EAGLE, Altium has all of the tools and makes it easier to do certain things, but they are not necessity to get a board laid out, EAGLE can do it, sometimes it takes a bit longer is all.