I think that the online world has actually brought books back. People are reading because they're reading the damn screen. That's more reading than people used to do.
There's only a couple times when fame is ever helpful. Sometimes you can get into a restaurant where the kitchen is just closing. Sometimes you can avoid a traffic violation. But the only time it really matters is in the emergency room with your kids. That's when you want to be noticed, because it's very easy to get forgotten in an ER.
I think all phases of one's career are serious if you take it seriously no matter if you are doing high profile dramatic pieces or not.
I think midlife crisis is just a point where people's careers have reached some plateau and they have to reflect on their personal relationships.