11 keystrokes to Debian
Well, I counted keystrokes in a Debian install with DHCP and partman's spiffy streamlined autopartitoning. 11 keystrokes from the boot prompt to the "welcome to Debian" screen. 10 of them were "Enter"; the one extra was selecting the "Yes, please nuke my drive" button. I think perhaps two more keystrokes could be removed. Not bad.
The last time I did this experiment, I think d-i took 17 keystrokes or something like that.
base-config itself typically involves another dozen or so keystrokes, plus password entry. Of course the rest of the packages installs can involve many more..