Pretty cool, that was a good find! But, I just put in an order at Digikey earlier today. Price wasn't all that bad, after all it is gold plated. I'll add a few to the next shopping cart, just to see what they are like. I probably forgot something so I'm sure another order will be needed to finish something.
I bet that price wouldn't deter someone that was opposed to soldering or would have to buy all the stuff to solder with for that one 3 pin header.