Can we apply the same argument to physical books?
I bought a book a few weeks ago for about $20, from a physical book shop. It is a non-fiction book. It is pretty good. I am about 2/3rds of the way through it. The book contains no advertisements. Shock! Why is this?
I suspect the argument is glossing over a few details!
Maybe we could get a firmer idea by trying to quantify things. E.g. estimating how much people would pay, and how much that would be worth to potential advertisers, etc.