+ I dont need a special photoviewer to view DNG files, even Internet Explorer read them.
+ DNG is universal & best format for archive. Like PSD, you can still open your DNG with all metadata in the future photo editors 10, 20 yrs later.
+ With DNG I can achieve color tones of different camera profiles, even making one myself. So no more "I support Canon 'cos it's skin tone", "I support Nikon 'cos it's vibrance" blah blah.