Do you agree?
well it could be argued that it is. maybe the smell of a book, and the sensation of paper on your fingers "trains" your brain to become familiar with the act of reading and adjusts your mood adequately. the thing is, if you have an ebook-reader (like mine) with a leather cover (like mine) with its particular weight (like mine) and smell (like mine), then it ought to cause the same response in you.
well that's just a hypothesis