> It's tangible.
This is the best part for me. Programming often reminds me of the "I sell air"[1] scene from City Slickers. The down side of this is that there's no undo. You have 300 operations to step through and if you mess one up you probably need to start over.
> The techniques are hundreds/thousands of years old.
Watching Clickspring recreate the Antikythera mechanism[2] has made it obvious to me that loads of secret knowledge was trapped in guilds and missing from the historical record as a result. You can do so much with basic hand tools. The down side is that there's so much temptation to buy expensive shit. Or worse, think you can't build anything because you don't have $15,000 worth of pro tools. I really needed a thickness planer on this project.
> Every project has a definite end.
So much. Fuck maintenance. No down side
1. https://www.youtube.com/watch?v=77xaqFyFET0
2. https://www.youtube.com/playlist?list=PLZioPDnFPNsHnyxfygxA0...