One day there will be the Mach 30, which will shave your entire face in a single swipe.

As a shaven-headed man (since last July) I would gladly pay $1000+ for an army of nanomachines, Gilette-branded or otherwise, which resided on my head full-time in order to keep a glossy sheen on my scalp, year round, day and night. It would be totally cool if they nourished themselves on dandruff, or even thoughts of hatred directed at dumb pedestrians!