comment: I agree on it being a "grass is greener" perspective, because honestly any method of execution is cruel and undermined by the much cheaper solution of prison preservation to die of natural causes after a lifetime of reflection through consequence. 
  However, I'm not convinced the frightening and unsettling notion of going into a K-hole reaches the same levels of immorality as being completely lucid and sober going through excruciating pain and agony without any possibility to react to it. The paralytic drug is given specifically to prevent body convulsions and while extremely disorienting it isn't agonizingly painful or necessarily akin to torture.