Color!
It saddens me how we have de-colorized so much in our society. Who would've ever believed it back in the 60's and 70's? I just bought an NOS Proctor-Silex stem off of EBay that I really didn't need. But--it is a beautiful lime green and so evocative of the time in which it was made. It's actually rather cool, because it states there are only 5 units making up the iron, making it easy to repair.
Like anyone actually repairs these things today...