I'm in my 50s and my house is literally full of physical books. Every room is lined with bookcases most of them stacked two deep, and I've literally had to put jackposts in my basement to keep the floors from sagging.
Buying new books as ebooks means I don't have to get rid of my old books. It's also nice being able to travel with a generous selection of reading material.
Overall I find the reading experience to be about a wash, but that's a highly personal thing. For pure reading a physical book is better except in low-light conditions, but the search and note taking functions on an ebook are a big plus.
The biggest drawback for ebooks for me is the terrible mathematics typesetting, which is obviously a niche concern; but it's beyond bad; it renders many math ebooks unusable. Often the equations are rendered as low-resolution bitmaps that are close to unreadable, or in other cases I've seen equation terms randomly spread hither-and-yon across the page. For scientific and technical books I would much prefer a larger, higher resolution device. It's too bad nothing really fits the bill because I hate throwing out cases of obsolete technical books every year.
If I had to choose just one format, I'd choose paper. But I find ebooks have their uses.