I am not sure, if it is worth, to respond on this post, but I will give it a try:
I do not know Joseph, but Joerg has done the following:
He bought a high class 3d printer, he bought a high class cnc etc.
The panels are backlighted, they are plug and play, and work with DCS, as soon as you plug them in.
backlighted means:
you cut it, you engrave it, you paint it white, you paint it black, you paint it black again, you engrave it again down to the white colour, you attach the wires on the backside, you paint it again, to remove individual light hotspots, to achieve a good quality. you now connect the electronic board, that you have designed beforehand to this panel. off course this board has been welded beforehand, the microchip has been programmed, off course with a software, that has been designed, tested for bugs etc. Now you connect all switches, bulbs etc, you test it for functionality etc. Off course, your customers are the type of people, who are not patient at all. If they order, they complain allready, if shipping takes 2 days. So you have to produce 5 sets to have them available when ordered. This investment obviosly has to be financed somehow, so someone is expecting some interestrate for his Money. The parts have to be stored somewhere, as you Need more than only 1 Panel in your store, you have to do this for all parts, to satisfy your customers. Someone is asking for taxes on the whole Thing.......
I am not involved in this kind of production, but I am well educated in economics. So I am sure that the numbers are not unrealistic at all. But these items are not for kids, who still live at their parents house.