By that point money ceases to have value, because the value of money comes from the motivation it gives people to work. If AI does everything, then money is useless (unless AI like money for some reason).
Real estate, food, energy, mobility.
That will be done with money. Or violence. Either way, a scary future to people when labor doesn't provide any value. Elon promises abundance, but what can he do against greed?
For a short time in history, the ability to obsessively focus on intellectually interesting abstract concepts was highly lucrative, but just as quickly we returned to the laws of nature: those who can lift and move succeed, those who can only think are automated out of existance.
We go from a species increasingly seeing themselves as "brains with bodies" to "amazing bodies with weak brains". The limitation of robots and AI in the physical realm, power hungry, mobility limited are contrasted with human values: energy efficient, highly mobile and dexterous, extremely good strength/speed/size ratios. The brain on the other hand, while energy efficient, is completely outclassed and seen as we see our swimming/jumping abilities: a novelty for sports, but nothing we seriously consider a defining human trait.
The smartest humans can fill weekends with novelty pursuits like building circuits, games, programs, etc. But they are about as useful as whittling and hobby woodcraft, something to pass time, but ultimately of no economic value.