Well, as for me, my conclusion to whether or not e-books can ever be "sold secondhand" is that for relevance to my overall life, it doesn't really matter.
I was just downtown today and went to my library and lo and behold, they had a discard sale. "Stuff a bag for a dollar". Either cloth or plastic or whatever, as long as it was a grocery bag and you could really pack the books in. I got 2 books that my in-laws liked, 3 that my daughter liked, 1 that my son liked and 2 that I liked. I *could have* crammed in a few more but it was a plastic bag and i didn't want to carry more. There were very recent titles by Lee Child, Sue Grafton, Stephen King, some I have seen on recent NYT lists.
All in good shape, and I was able to give them to people I knew liked them.
With the exception of a few that I have bought brand new over the past 20 years, most of my books are Library discards, hardcover, in VERY good shape, discarded only because they had the "number of loans" and had to rebuy the books I presume.
When they have a "Stuff a microsd card" sale for $1 on Ebooks, then, DRM or no, I'll think about it
