Great thread!
I flew quite a bit as a kid in the '70's.
727-200s: PSA, Hughes Airwest, United, Continental, TWA, Northwest Orient, Western Airlines
Yes, the 727's seemed fast- and sounded fast.
Made me reflect on the other relics I flew on quite a bit:
United DC8-61, TWA's L1011, 747-100, and in ~1980 TWA 707-300/320;
Republic Airlines & Hughes Airwest DC9-30, Air California 737-100, Frontier (original Frontier) 737-200, and later Air Cal BAE 146-200.
Little did I know, in that era, before deregulation tickets were big bucks- and the flights I was on were not sold out-
plus there was no riff-raff on the flights or folks wearing pajamas.
Thanks for the memories.