Because in practice a negligible fraction of people is willing to pay even a nominal fee for something they think they can get for free. Just a few days ago we

Because in practice a negligible fraction of people is willing to pay even a nominal fee for something they think they can get for free. Just a few days ago we had an article full of outrage that Google asked people to pay a small fee once their extremely generous Gmail storage filled up, because they were used to thinking email was free.