I was just talking to my mom about 3D printers on Friday, trying to explain the processes of the different types, and how the most accurate ones like this (lasers, laser-sensitive liquid, directed high precision curing) are the best but also the most expensive. That conversation would have gone much differently had I seen this project a few days ago.
One hundred dollars is a major game changer. I've been somewhat reserved on the 3D printing hype because of a lack of necessity for most people, and a lack of precision/usefulness at the lower price range. This can change all of that. For one hundred dollars you no longer have to worry about longer term entertainment value or interest for children. It's the cost of a couple of video games. And for project work, you don't have to worry about needing it for multiple projects. At $100 a single use justifies the cost many times over. I'm looking into spending $400 right now on a single 3D print for a small product I'm working on.
I love rewarding ingenuity. BACKED!