I advocate RAW for all the reasons that the hundreds of posts here suggest and prove. Learning to compose or expose is not an excuse to not get the most you can from them. Sooner or later, one will go to RAW. Why not sooner and be ahead of the game?
It's like saying, don't buy a dSLR becuase they are more complex, use s P&S until you know how to take pictures. Not the best advice, at least not for me.
Lack of knowledge is no reason to use a more effective solution.
Some say "we need it now, and do not have time for PPing". Fine, take that SAME knowledge that you use to get good RAWs and get good JPGs. Just realize that final quality will not be equal. The sharpening, saturation, contrast, cropping, tone mapping abilities of even the BEST cameras on the market, are no match for a person that knows what they are doing with photoshop and a RAW file that is properly exposed and composed.
Is this an anti-purist's way of seeing things? No, it is the modern way of seeing things. As has been said before, there is no such thing as an unprocessed pic. Either you leave it to some foreign engineer's taste to finalize your pics for you by doing it all in camera, or you take control of the results yourself. A file that has 6MB cannot have the same resolution and data as a file that has 18mb. Choose the format that suites your own needs and if you are not satisfied... LEARN how to improve it.
The nice thing about this all is... you have the choice to do either.
I choose to take the most control possible to assure me of the best results I can get.