Earlier quoted context omitted.
Violating copyright and stealing are fundamentally different things. If I steal your tv, you no longer have a TV. If I pirate a book, all existing copies of the book still exist. If you price a book above what I'm willing to pay for it, I'm never going to buy it. Ever. If my willingness to pay is "$0", then you can't even argue that the creator has lost revenue if I pirate it. I was never going to buy it - it's too e…
I think that the argument which you present works well for personal use: the book $0 monetary value to you and you don't intend to redistribute it. However, there are people who copy without authorization and make money from it. (For instance, Google: they collect money for YouTube Premium subscriptions, in exchange for which they let people watch all sorts of illegally reproduced material without commercial interrup…
In the case you describe, there is a demonstrated willingness to pay $15, so you have enough information to calculate damages.