The important thing is that you've created something unique that you can keep.
I think the point I was (not so eloquently) trying to convey in my parent post was that hackers value 'creating something unique that they can keep' more than most people in the population, and since woz is the ultimate hacker, it makes sense that he's pushing for this sort of project-based education. I don't have any good examples off the top of my head, but you could imagine other cultures or even personality types within your own culture where people place value on something other than projects that they can hack on and show off to the world on github.