I also don't find it insulting for an author to prefer "real" (i.e., "paper", but most people aren't used to calling those books "pbooks", and use "real" to differentiate "physical" versus "non-physical". And yes, ebooks exist in a physical form, strictly speaking, but most people don't visualize it that way.) books to ebooks.
Why would that be insulting? People have different needs. Some people want/need paper, others want/need ebooks. I don't require everyone to have the same wants/needs as myself as a form of self-validation.
The point of publishing in ebook form isn't because the author has fuzzy feelings about ebooks, it's because we have ereaders and we want to fill them with ebooks we like. Really, I would find it more insulting if an author DIDN'T publish an ebook version because she/he didn't like ebooks much.