We live in a country where its hard to get the right temperature and humiditity or costs lots to get it so, fuel bills!!
Not all of us are good at painting and if you dont get it right you may have to resort too polishing it anyway.
If the colour has gone then a paint job will be the only way but if you can put up with that then polishing is a lot easier, cheaper and can be done in a not so good surrounding.
C P 🙂