Her opinion of ebooks has been made clear many times (I believe she even wrote most if not all the books with pen and paper?), so the Luddite claim is probably valid too.
Having said that, I think she'll give in eventually, if only to continue her revenue stream as ebooks claim larger and larger shares of the market.
In the meantime, there's plenty of VERY good fan fiction out there set in the HP universe. Some is a lot better than JKR's writing, in my opinion.