I forget where and when I read this, but apparently vacuum cleaners generate static which can kill electronics like PCs, hence why people use (low power) air blowers to shift dust.
Miracles can happen :-)
I've never been a big Yes fan (apart from 90125) but I do find it's good background music when working late at night - I don't feel the need to really listen to it in anger, but it's engaging enough to have playing.