If you came to Linux from the DOS/Win 3.1 era like I did, then
you may have heard of Lugaru's Epsilon, a legendary Emacs-like
editor that's been available on DOS since the
2.0-hey-we-just-got-subdirectory days.
It's a decent Emacs-clone, and the keybindings are very
similar. Why would you pay Lugaru $250 for a license to run
Epsilon (the beta is free for evaluation) when you could just
run Emacs or XEmacs for free? I have no idea.