There are also other models than creating a work without any income, then recouping that cost by a state-granted monopoly. You can release preview chapters and then solicit donations from interested readers. You can build on your reputation and then promise to finish the book later for some up-front payment. These might not work for everyone, but they are in wide use today. One could argue that removing options for those authors that depend on copyright today is still a reasonable price to pay for removing all the abuses of copyright.