There's still a matter of status. When everything mass produced is cheap, the wealthy will demand hand produced goods.

Entertainment will not all go free -- it will still cost goods and services to create more elaborate entertainment. (How do you stage an 18th century show? Perhaps CGI will be advanced enough to cover the material cost, but how do you organize 150 people doing CGI without paying them? After all, nobody wants to do the grunt work for free...)

The problem, instead, looks to be that we won't have enough for unskilled labor to do. We used to be able to throw them at manufacturing -- even that is going away.