I think the fee goes toward royalties to use the ©
Copyright is such a funny thing. Apparently I just bought one for my book. Despite the fact that I own this work, and I am the only one with the right to “copy” it on other sites for people to purchase, it costs money to register that you own the copyright. Or something.
I suppose this means I have proof of when the book was registered now. So if someone tries to steal it I can sue them. Since – you know – that’s worked out so well for the movie industry.