Even though I was barely ever a WordStar user, the existence of WordTsar—a cross-platform open source WordStar 7 clone for Windows, Mac, and Linux—makes me happy: http://wordtsar.ca/
@cstross the only thing I remember about WordStar is a classmate of mine getting really mad that we were using WordPerfect (pre-GUI, natch) in our computer class instead of WordStar because it was so much better.
@scarfwitch @cstross where's my Wordperfect 5.1 retroclone?