Because I am fan of Wordperfect, I will now embed their (kinda dull) promo for version X6, which was released earlier this year:
It's not just me who likes it. And here's another person. In fact, given that it probably picks up virtually no new users, it may be a fair assumption that nearly all Wordperfect users have been dedicated to it for years and years and love it in a way that is a tad unnatural in the scheme of how people should feel about word processing software.
As for the X6 version I like the idea of the eBook publisher. I would probably never use it, but take comfort in knowing it was there.