I really don't know why Apple doesn't do the typical Apple thing here: make it a $600 add-on item. If they can transform 3.5mm headphone jacks into a huge upsel

I really don't know why Apple doesn't do the typical Apple thing here: make it a $600 add-on item. If they can transform 3.5mm headphone jacks into a huge upsell opportunity, I don't know why they'd miss out on that opportunity for something like the Touch Bar. People can then have their standard keyboard with function keys AND an external controller if they make use of an application that would make it useful.