Anyone can print them so I'm sure someone is trying to make a profit on them. Barnes & Noble has their own store editions of a lot of them and even some non-public domain stuff.
When that became a problem, it was the worst pain I ever experienced. Was fine one day, removed up convinced my spine was broken and that I could feel the broken ends grinding against each other.
I make enough that I don't have to worry about things, but I had shit pay for long enough that I still don't LIKE spending a lot of money.
$2,300 dentist bill? Fine. I can pay it, but I'm not HAPPY about it. Even after the HSA card, it was still $600 in "real" money.