My son-in-law's comment on the weekend sums it all up for me.
Asked how his Kobo 1 went (my Kobo, given to him for Christmas) on his recent six month deployment (He is in the RAN).
Bloody fantastic! The ability to have two hundred books on an easy to use device beats the hell out of lugging paperbacks around. I never ran out of books to read!
Could not have said it better. Oh, and yes, we have run out of room on our house for more dead tree books.