I know a lot of people who are familiar with the NWC carts, and I don't think they even know that Digital Press exists.
As for the repros themselves, I'm cool with it as long as there is some clear way to tell that they're not the real thing, like what BomberHead and Rickstilwell1 said about engraving the carts. You may have the best intentions, but the people who buy them may not.
EDIT: Also, your post title is very misleading. That tends to make people at least a little suspicious.