It is truly up to you..
There’s nothing wrong with a good solid book. I have at least a few. Real books are wonderful when you have the time and money for them but there isn’t anything wrong with the kindle or iBooks.
A) books aren't made like the old days. Pretty sure the majority of books aren't made this way anymore. It’s truly a beautiful craft though.
But a books words don’t change based on where they are located. Whether it’s e-book or paper, the words are the same, there is no competition.
B) some don’t want to carry a ton of books with them. Kindle is convenient because even 100 books all equal one weight.
The fact that people even want to read instead of staring at Facebook or Twitter all day is amazing in itself.