Whenever I consider a more expensive bike, I ask details such as this. If it has been repainted, I would lose a lot of interest and value. What was the purpose of the repaint?

Sure, you could lie to the person and possibly even pull it off, but that is a ****ty thing to do. (Not implying that you do this.) People value the bike being original. You may not agree with it, but that doesn't change opinions or values.