I still love my Headblade, actually I fixed it, so I do not need to fork out for the spare yellow adaptors. I doubt if I will ever part with it. But the DE thing has bitten me. Mr shaving regime has evolved to the HB on the dome at night or early mornings during the week, and the DE on the face. On weekends with more TIME on hand, I DE my head and face.
If I was retired, I would probably only use the DE on both face and head. Men in retirement seem to have much time on their hands. It makes sense to spend some extra time on shaving with a DE and saving money on expensive blades then.