Not to mention that LyX has lots of features a graphical editor can offer you that editing a plain text file cannot. For example displaying the document structu

Not to mention that LyX has lots of features a graphical editor can offer you that editing a plain text file cannot. For example displaying the document structure (tree of headings, subheadings, etc.), and allowing headings to be promoted/demoted/reordered (while taking all text and sub-headings and their text with them).