Normally, I'm the one yelling and screaming about technology but I'd say both are different but there are definitely certain aspects about ebooks on a kindle (or an eink reader in general) that I like. Beyond the things I've mentioned, I'll never lose my place. I'll never misplace my book (as long as I know where my kindle is at). I can easy stop reading one book, go read another book, then start reading my book at the exact same place I stopped. I can make my font as big or as small as I want (this is less an issue for me but I think a lot of older people buy them for this feature).
I know why we would mourn the diminishment of the paper book but I'm here to say viva el ebook!
I also find ebooks much better for reference materials than paper books. I don't mark up textbooks because I have no intentions on keeping 95% of them, so if I need to find something, I'm stuck flipping back and forth and re-reading a lot to find the specific passage I want. Simple search on an ebook eliminates that.
(Nevermind that I never buy textbooks as ebooks because they're largely a scam. If I pirate an e-textbook, it's super useful. Someday textbook publishers will figure out a system that doesn't actively promote e-textbook piracy.)