I prefer Ebook. They are easy to manage and you don't lose them. You can carry and read during travel. Whenever you are made to wait.. may it be a long queue, or siting idle waiting for a friend to show up.. in all these waiting scenarios, Ebook comes handy as you may have your favorite book handy in the mobile. They don't need huge physical storage space and cheaper than hardcopy books
nowadays of course digital books....
but my old habit of reading in the closet is hard to dismiss, and i prefer hard copy for it (usually small reader diggest will do)