There is no money to be made from individual users. All of the money comes from companies building something on top of the LLMs, and those of us building startups on top of LLMs are very much aware of the differences between the LLMs. And, to the point made in the article, it is trivially easy for us to switch from one LLM to another, so the LLMs don't have much of a moat and therefore they cannot charge much money.