I have no way to guess at the price you need for your products, because I have no idea what the materials cost you, your power cost, or what it's worth to you to tie up your printer for 7 hours.
The trade off between speed and quality is understandable. I'll have to face all those demons when I manage to create a prototype and ascertain if I can make it at a price point people will be willing to spend. I assume it can be done, but the proof remains to be established.
ok, you're right, it's hard to guess it
it costs 15$, and most people think it's too much for it, because it's just a funny thing. Yeah, it's just a joke, but it includes much time for producing it, material + our efforts and our printers that have its pricer as well. Very few people really understand where from prices come out.