Books are the next vinyl records. Sure, there are some advantages to them. Enthusiasts will cling to them for a long time, mostly because of feelings of nostalgia and the desire to mark themselves as members of a particular subculture. But the advantages of digital formats are so large that books are going to be relegated to niche markets. Considering my own personal reading habits, I can't wait for that to happen.
Indeed most of your arguments in favor of books can also be made to support CDs or vinyl records over digital music.
Lastly, you forgot to mention the environmental impact of books and eBooks. Books have to be manufactured and carted around. eBook devices also have this drawback, but eBooks themselves do not.