Well, yes and no.

Most artwork done for a game is customized, especially models, sounds, fonts and panel stuff. I'm not so a artists, more a programmer, but especially when I'm doing an A6 app with some special code which is my own, because I built on myself. I do my things usually modular so that I can reuse stuff in later projects. I dont want other people to use my code when I dont want it. When I made some incredible piece of art, I want to protect it. I dont trust people I don't know. Especially when I release an unprotected 3DGS project here I'm sure that some ravens come and took my jewelry away. My code is my baby. And I love my baby. And if someone comes and wants to steal it.. well, he can be sure that he will be hauled over the coals, seriously.

Additionally, it would have positive side effects, too I could provide the user an option to select the texture quality by providing zips with levels with lower resolution textures or additional packages with additional content or stereo sounds with higher quality that mono sounds.. or else.