I'm old school so I got the hardcover. I liked being able to mark my place and read it whenever I had time. I love having it on my shelf it's just one of my favorite books because it was such a great read.
I bought the e - book version on Kobo. Nice to be able to read it wherever I am. But given the choice today I would have bought the audio book instead. Easier to consume. I started reading the book months ago, and still haven't finish reading it. It's hard to find the time to just sit down and read it, but if it's an audio book you can listen to it even while in transit, walking, jogging, etc.
No matter, my choice would be digital format. Save the trees. Lol.