Both jpegs and RAW have their benefits, and each person needs to decide which format works best for a specific situation.
While I agree that each person should decide for themselves, I don't see any benefit that JPEG has that RAW does not also share since all JPEG files start their life off as RAW files before being converted to a JPEG. My biggest issue with letting your camera do the JPEG conversion is that you're at the whim of some electrical engineers opinion of what your images should look like. And I've paid way too much for my camera to give up my control at the most critical link in the chain. But then again, not many people are as obsessive/compulsive as I am so I understand that having complete control may not be everyone's "cup of tea"