A very interesting topic, Larry, since I wondered about it for quite a while after I discovered RAW. Thank you for posting it. I am a relative newcomer to photography and my age and lifestyle don't allow me to take a lot of pictures but after experimenting with RAW and then RAW + JPG, here's where I'm at with the pictures I do take:
After about ten tries at editing the same images as both a RAW and a JPG, every time I edited a JPG I asked "why am I putting myself through this when I know I'm not going to use it?" So now the only JPG images I work on are the ones posted on CiC I reply to.
Maybe if I took a larger volume of images I'd feel differently, but that's where I ended up.