He's really sort of the devil. He's completely emotionally detached. He has no empathy. You find that in psychopaths. It's about power with Voldemort. It's an aphrodisiac for him. Power makes him feel alive.
As I approach my 88th birthday it's become apparent to me that my eyes and ears among other appurtenances aren't quite what they used to be. The prospect of long flights to wherever in search of whatever are not quite as appealing.