[Elrac]

Just for backup on the large lines thing:

Many years ago, one compelling feature about Lugaru's emacs-family Epsilon (recently discussed here on HN) was the fact that you could quickly load _any_ file, with maximum sizes several times the available system memory, and completely regardless of text structure. You could load a fat binary, e.g. WORD.EXE, edit character strings in it, save it, and if you carefully avoided changing sizes and offsets, have a still-working .EXE program.

This is of course a slightly off-the-wall use case for a text editor, but if you happen to need that kind of thing you'll be really grateful if you have an editor that can do it.