Something else to remember, when you sent your horn back to the factory for an overhaul, they stripped it and relacquered it. What some of you might think of as "original" lacquer may well not be... you just don't know.
I refuse to play a crappy-looking dented horn. I've had six or seven horns restored, which included a relacquering, and never did I think "oh crap, I ruined it!" Every horn played as well or better.
The only reason to not restore is that you're not (yet) convinced you're keeping the horn long enough to amortize the restoration. Otherwise, they were intended to be refinished after an overhaul.