Personally I would not be interested.
As you say someone would likely turn this in to scams and selling games as originals. I would strongly suggest that there would be made a clear REPRINT mark on the box (and manuals) so this could be avoided.
Some of my game boxes shows the mark of time, but as long as it is bearable I think it is part of the charm. I wouldn't want to own a "box" of e.g. Giana Sisters if it was a copy. It would be blasphemy to put something like that up against the originals.