Please don't 'buy' digital items from Amazon, because you won't actually own them. Pay extra, support your local bookshop and get a physical copy which you will actually own.
This disregards the benefit of a single device that is easy to carry. Love where this is come from so maybe do both if you can.
I borrowed it from the library.
Support your local library!
I basically always start with digital, if the book is good I always buy a physical copy for my shelf.
Amazon allows EPUB downloads for publishers that have chosen to go DRM-free.
I'm more interested in rewarding utility because that gives me better things.
I really appreciate that sentiment, but on the other hand 98% of the books I buy I won’t read a second time (because reading a new book will almost always trump rereading an old one), so I’m actually fine with not owning most of them, especially at $1.99 prices. The few that I deeply care about I buy a physical copy of.