This quote puts it all into perspective for me. Finally and suddenly it all makes sense.. This quote was enough to convince me to switch to RAW when shooting my photography.
RAW is the negative and JPG is the snapshot your camera makes from it”
– Garth Smith, December 2009
Found at the top of this great article that explains RAW photography. It is quite long, yet filled with interesting information that should convert even the most ardent-JPG/JPEG lover to using RAW when shooting photographs.