That's why we have to have the right (and ability) to make our own spare parts.
I saw somewhere a beautiful machine that unified 3d printing and precision machining in one. One toolhead was depositing and laser-melting metal powder, other toolheads were conventional mills and drills and taps. The workpiece was on a 5-DOF mount. The metal was deposited layer by layer to what amounted as near-net casting, then the small excess amount was milled away. Result, a beautifully accurate part.
Edit: Ability first. The ability makes the right.