I worked in a medical library. It's where I first heard of Ebola.
I prefer print, because I have an almost photographic memory, and I'll know the quote I want was about 2/3 down on the right hand page at the end of that chapter about 3/4 of the way through the book, and I just don't have that same sense of physical place with ebooks.
I do have a Kindle app on my phone though, and I quite like that it means I've always got something to read with me, and I don't have to have to carry something physically big with me. I have a lot of free classics on it - there are few titles I've actually paid for, and even my copy of Everyday Sexism was when it was on special offer one weekend, so only cost me 99p.
Also, some books just aren't really right online - I have a lot of catalogues from art exhibitions, and And they're often bigger than A4 in page size, and obviously with lots of colour illustrations. It's just not going to be the same on a smartphone or even an A5-size eReader.
Plus all the out of print books I've got which haven't been scanned/transcribed into an electronic format... Or the childhood books which I read and reread - even the ones I've bought newer editions of, I haven't quite managed to give up the falling-apart copies.