A good solution to this is buying paper books.
Lots of cheap used books out there as well.
Then you can:
Keep it on your bookshelf. Read it over and over again. Make notes all over it. Photocopy it. Share it with a friend. Donate it to a tiny community library. Give it away Sell it. Burn it. Toilet paper.
I really wish that real paper books would become the new trendy thing (like with vinyl.[1])
You can even get together with some friends with similar tastes then each person can different good books and let everyone read them. Saves a lot of money.
[1] I read somewhere that a significant percentage of people who buy and collect vinyl LPs do not own a turntable. Quite odd