Believe me, I've noticed. Especially for anything left of mainstream. EVERYONE knows the "full" AT keyboard, but the short one is far less common, and fell through the cracks over the decades. And god help you if you're looking for more than the basest info on an 80s computer that isn't a Commodore, Apple, or IBM. The number of Apple II accessories I've learned about while trying to rummage up some obscure piece of TI 99 hardware is just absurd.