The price difference of the chip isn't that much. It is all of the other things that have to be included. There are many things that could have been added on. But each piece makes it more expensive and takes it a little further from th original concept. Trade offs had to be made to reach the price point that was determined to be needed. As I have said I like it as it is. Would I have incorporated some of the add-ons, I guess it would depend on what I needed it for.
It would great if there were a place wherebyou could send your criteria and have piece work boards made. I am sure that this would be very expensive. Anyone want to guess what the foundation had to pay for only 50 boards? My guess, 5 to 7 times what they plan to sell the model B at least!