Not really buying the analogy between massive wealth and superlongevity. Virtually unlimited access to super-stimulation such as fame, drugs and any other rush you could want to get your hands on doesn't seem all that comparable to an unlimited supply of everyday normal life.

The everyday reality of living forever isn't going to be shockingly more exciting than regular ol' not living forever. There will be new awesome and crazy stuff, but you'll have had lifetimes to grow used to them. People born into them will think of them like how we currently think of small handheld computers that can connect us to almost everyone we've ever known and effortlessly tap into a huge reservoir of collected human knowledge.

Seems more analogous to looking at the average level of wealth/lifespan in 1700 and wondering how our brains could ever handle the lavish living conditions and doubled life expectancy of 2015.