I have been fighting this similar question/concern on my Casati Gold Line S. Large sections of paint were scraped away by a motorcycle chain used by the previous owner. He used it for commuting, and the rear triangle is rough. I considered repainting the entire bike, but have reconsidered after several unsuccessful practice attempts by local painters to get this right. I spoke with a local builder, and we have now decided to just do the rear triangle, along with the decals and clear coat. I just cannot stand clear coat over the scrapes to protect from rust. She is far too beautiful to let her go without a fight.

This is the best option for me, although I'm certain I could find others that would advise against this action. Owners have to decide for themselves, knowing that value will likely be impacted. I ride all of my bikes though, and I want them to look presentable, so I'll take the chance.