Quoted from PinballMikeD:
We received numerous requests from existing SmartDMD users, asking for the opportunity to purchase our color files independently from our kits. These are the guys that built their own SmartDMD systems. They are the original beta testers that helped make Pinball Browser what it is today. It didn't seem right to make them buy hardware they already owned. This is the reason we decided to sell the color files independently.
Anyway, I now understand your question. Yes, if you buy an ACDC SmartDMD kit and move it to another game you can always move it back. I've always sold my pins with the MODs included, so that is a new concept for me.
The expand on Aurichs question , if I am not mistaken in the "other color display option" if you buy the DMD for admittedly more $$$ you can load any rom you want correct ? I can see the use case of selling a machine and wanting to keep this and put it in a different one. anyhow I get you have to do this since its based on a "open source" product and you have to put a lot of work into the color files but that's kinda a bumemer.
Also if I buy the one with the color file does it come pre-installed or do I have to load it? Easy enough but my personal machine is a Mac as well .