"I'll believe obsolesence is dead when a video game maker can do the same thing, for example using hardware from 10 years ago to run their newest and greatest graphics-intensive game."

won't ever happen. You can always make a more realistic looking game, that's the great thing about the games industry. Just making a face that is actually indistinguishable from a real human is at least 20 to 30 years off in my not so humble opinion.