Ever see a texture you know is excellent look positively awful in an image? Ever see one that you thought was awful only to find it absolutely radiant in the right hands? There's more to it than simply pulling in a model and slapping on a texture...composition, lighting, and a multitude of other factors have to be considered regardless of what tool you use. That is what they all are, tools. Whether you choose to do your work with a computer or with conventional media the same things have to be taken into consideration. I used to work with pastels and oils, no one ever suggested that I should grind my own pigments and mix my own binders. I didn't make my own paper or canvas either, I purchased my tools then just as I do now. I just use a different tool box.