Not much of my paint is original at this point either, but it all needs to come off and be redone.
I spun the car out at 10k miles and 90% of the car was repainted at that time, even though the damage was cosmetic and minimal.
I was then backed into in a parking lot, so the hood was replaced and the upper nose was repainted. it has also been egged (clear coat is chipped in an intereating pattern) as well as hit with a golf ball. A couple door dings too.
Still, it loks good from 10 feet or so...
I drive the car so I can't get stressed about it. I do have a regimen and I am asked often what my 'secret' is to keeping the paint nice on a 'daily' driver.