When I use the normal editor ("Edit source", or "Edit" in projects without the visual editor) the editor is opened just for that paragraph.

When I use the visual editor, not only the whole page is loaded for editing (witch takes more bandwidth), but also the page is scrolled back up - so I need to scroll back to the place I wanted to edit.

Also, when I finish editing, the normal editor would have brought me back to the beginning of the paragraph I was in when I started editing, while the VE doesn't.