The day I was able to upgrade my 'shoebox' 110 baud modem to a 300 baud modem was the day I thought "I'll never need this kind of speed, but it's nice to have."
Thanks for posting about this documentary. I ran a BBS from 1983-1986 on a Commodore 64, a 1200 baud modem and 5 1541 floppy drives. An amazing time for this technology.