I spent 95 weeks last year doing an accurate and complete ground-up restoration on my '67. For some folks, simply applying a bit of overspray while painting is 'good enough.' I scoff at this. I meticulously copied onto the mufflers, droplet by droplet, the exact overspray pattern that was there originally. Even the runs and sags at the bottom of the door panels were duplicated. Your average 'restorer' will just slap some new paint on, calling it 'original' if it is the same color.
Some folks think using the 'correct' fasteners is good enough.
I made sure to scratch the frame in the appropriate places, just as the handling mechanisms at the factory did. Some folks get a new set of tires that LOOK like the originals, and call that good enough. NOT cheap, let me tell you. But, correct is correct. Some folks put on new valve stems and caps, and away they go.