Graynomad:
now offer art filters that do the manipulation in the camera
I'm not a fan of doing anything in camera, you can't change your mind later.
Well for still shots, the higher end cameras have the ability to shoot in RAW+JPG, and the RAW file is the image before the art filter processing. My Olympus cameras even allow you to to go to a RAW file on the card, and select an art filter after the fact, and the camera will create a new image with the processing. Doing art filters in the camera has one big advantage over doing it in post, in that you can see the effect as you are composing the image, and not have to wait until you are at the computer. That being said, I tend to be old school and generally don't usually use art filters.