I can buy a used (and sometimes new) paper copy cheaper than an Ebook and when I'm done I can decided if I want to keep it sell it or give it away.
Your point about paper copies often being cheaper is definitely true, and for books I plan to re-read, refer to, etc., I now default to this. But one of the reasons I like my Kindle is that I can take an entire library with me on a month long trip, change my mind about what I want to read, buy a new book if it comes out while I'm gone, and sample things I'd otherwise need to go into a bookstore to find.
I am sympathetic to the argument against DRM though. It seems criminal that I can't leave my ebook collection to somebody after I die.
It's a bummer for sure, but this is probably overkill. I think the main issue is that the price doesn't necessarily reflect this limitation. For many books, it probably wouldn't affect people's willingness to pay that much, but for books that they'd like to be able to give away or bequeath, it could matter a bit.
Technically, you could, but doing that would be.... criminal.