[Wil]

No, I could never want anything to die, although I love your pharmaceutical/cosmetic test subject idea - humiliate the criminal and cut down, hopefully eliminate, the need for animal testing. Humiliation punishment is something I didn't mention. We could bring back the stocks for petty criminals if it weren't for the inevitable people throwing shards of broken glass at their faces.

EDIT: For freeing up space in prisons, I think imprisonment in such places is not the best solution to the problem in a lot of the cases, hence my desire to explore alternatives, like corporal and humiliation.