Keep it stock, or make it your own?

I modified my first car with engines and transmission, then got the correct interior because the wrong seat I had sucked! Big and little wheels and tires, headers and 3" exhaust. The second car has wheels and tires but is mostly still stock. The third and fourth will be non stock with period correct parts, a couple of what if type builds, and I have one car that will get a restoration to stock. I never thought that last bit would be uttered from my lips, but having a hot rod, a mild cruiser and two other not original cars, I figured why not have one stock car. But overall I say do what you want, it's yours after all.