I grew up in a Boeing family. I saw the first flights of the 727, 737, 747, 757 and 767. I got to ride on a test flight of an SP that was destined for the Saudi government. We did stalls, very tight turns and all sorts of things I had never before (or since) experienced in any aircraft.
For some reason the mass retirement of the 747 makes me weepy.
Edit: It's just now circling before landing at Mohave according to Flightaware. I hope C441 knew it was going to Mohave.
Update: An era is over now.
