I spent some time a couple weeks ago geeking out on the Buchla website, looking at the modules that make up the 200e and other systems. It was fun to do because the components are both familiar and foreign. The influence of Buchla is obvious in eurorack modules by Make Noise and Pittsburgh Modular and others, specifically things like function generators, complex waveform oscillators, and low pass gates.
As I've learned about these modules, I've wondered why some of these ideas never broke through into mainstream commercial keyboard synthesizers. The low pass gate is particularly distinctive and would be interesting in a Prophet-like analog synth. Function generators are flexible replacements for envelope generators and LFOs, and could certainly find a place.
It's like some big marketing machine decided that the Moog-style substractive synthesis model was the only thing worth doing, in endless variations, but it's not like that at all.