Quoted from smassa:I don't want to come off the wrong way but I can't see this as something that would make sense financially.
I don't think he set out to make a profit, I think he wanted the challenge.
Remember the Heathkit kits? You could often buy the already assembled item for the same (or less) money. You bought the kit so you would have something to do (this was before cable TV sucked up all your evening hours).