For me, it is all a labor of love. I've had to put my car restoration on hold for 31 years. It took a back seat while I attended college, post-grad and residency programs. Then marriage, kids, divorce and marriage again.
I wouldn't have to put as much time and attention to detail as I have, but I love doing it. It's my own archiological project. I think we all get a tremendous amount of satisfaction doing as much of the work ourselves to make the car look "day one"