I prefer a dead tree edition for books I want to own.
I use ebooks for anything I can’t hold close to my nose and/or that has teeny type. :-)
For books that are valuable, like The Road To Serfdom, Atlas Shrugged, Witness, 1984, Blackballed by History, and lately, Stealth War: How China Took Over While America’s Elite Slept, I usually get the hardcover, audiobook, and the eBook.
The eBooks for things like this are fantastic for highlighting and finding passages.
I came to this conclusion because my copy of The Road To Serfdom was so full of margin notes and highlights that they were basically useless. With eBooks, you can flag them and find them easily.
Buying fewer hardcover books, too. A lot fewer.
A lot of my history books are real books though I do have a nice selection on kindle. When I can get a $40 for $8 on a kindle sale I do it. Most current sci fi is kindle because I can try a new series for $4 for the first book. I also check the used VG. Sometimes a good deal sometimes, because of prime free shipping it is worth a dollar more for a new book.