At first glance, you see 3d printer and $100. Sounds great! Except not.... This uses resin. Resin that is actually extremely toxic AND expensive. Although the printer itself may be cheap, a tub of resin can run you $500. Im not totally usre how much you can get out of that, but it's definitely way more expensive than the…
They estimate the price of a few prints, and it seems low. They also have a link and info in the faq concerning the resin..so maybe you should have another look.