I like to believe that AI and robots will create so much food/clothes/homes/gadgets, that cost of living will go down to zero. All of humanity will be able to get every material-need satisfied, freely and effortlessly.
However, humans need something more beyond materialistic-stuffs. We need entertainment, sense-of-purpose, joy-of-overcoming-hurdles. Many a times I curse my daily struggle for the stress it creates. Ironically, the same struggle gives me a sense-of-purpose. It is the same struggle that gives me joy-of-overcoming-hurdles. It is the same struggle that tires me out and primes me up for entertainment and relaxation.
I guess that challenge will be to get these extra-materialistic needs fulfilled when machines are providing us with all our material-needs.
I like to believe that our psychologists and philosophers will find a way out.