SO glad they worked Arnold's visible age into the story instead of him just oiling himself up like Stallone has been doing as of late as if he was still in his prime. It still pains me to see him though, not in a "how embarrassing" way but just to recognize that he is past his prime, and that the only believable story arc that they can do is of him being some aged, borderline "obsolete" model.
I remember the 1984 Terminator one sheet before the movie came out thinking that the guy from Conan the Barbarian looked so badass with short hair! He was the epitome of strength and the ultimate unstoppable villain. It just feels wrong to watch life run its course and see with my own eyes that he just isn't and can't be that anymore. These "period" movies of people going "into the past" to times that I've actually lived is just crazy.