Such drives would be far more expensive than what we use daily. Factor in electronic shielding needed to prevent soft-errors from cosmic rays: http://en.wikipe

Such drives would be far more expensive than what we use daily. Factor in electronic shielding needed to prevent soft-errors from cosmic rays: http://en.wikipedia.org/wiki/Cosmic_ray#Effect_on_electronics http://en.wikipedia.org/wiki/Cosmic_ray#Effect_on_electronic...