I think a lot of people here are into that sort of music... it's just the generational/intellectual disposition of space nerds . I've been a Synth/retro/ambient freak since my early years, and listen to it far more then any other genre.
I grew up in the 70's and 80's. In the 70's (of which I don't remember much) synths were experimental. In the 80's they became mainstream. And in the 80's during the home computer boom it became possible for kids to be very creative with music. Synths were still limited, but that also gave the music of the time its distinctive sound.