Try opening the RAW file in Photoshop/ACR or the RAW processing software that came with your camera, and make a few adjustments to things like exposure and white balance.
Now do the same with the Jpeg version. Oh, wait...
I think the reason the people who tend to prefer RAW over Jpeg prefer it, is because of the flexibility that it allows us
after we've taken the image and opened it up in our editing software. For those people who are already able to take awesome pictures that need hardly any adjustments out of the camera (and I'm not being sarcastic, I've seen plenty of examples of people who do just that), then good on you. For the rest of us, RAW lets us put right a lot of the things we got wrong when we took the pictures.
Russ.