Further, different audiences are looking for different things. One other response mentions social status. I will contribute another: personal human interactio

Further, different audiences are looking for different things. One other response mentions social status. I will contribute another: personal human interaction with someone that seems both "out of your league" AND "no-need-to-get-away-from-the-computer" available. That configuration has significant value (as real content from a real human) for enough of these fans, enough of which recognize this and pay well for it - to make it worth the performer's time. And still very far from "generative AI".