Jenny's point about it being "necessary" is exactly why it's worth it. The whole point is that it wasn't necessary at all, which makes finishing it matter. You do it to prove you can take a pile of parts and make it run again, not because you need a car. That's the win.
Jenny had a point about it being scrap. A whole year of weekends for a car that probably still needs work. The win seems more about pride than having a working vehicle.