I'm not offended at all.
What is your time worth? Designing a piece to print with high reliability and high quality is a non-trivial task. It takes lots of time and testing to perfect a toolpath. Could you go download a model from your favorite model-sharing site, slice it yourself and print it out? Of course you can. However, you have no guarantee of the quality of that item. There is so much bad geometry out there that you never know what you're going to get. With Poly, that's what you're paying for: a high quality finished good that you know will work.
It's also relevant that Dawn was designed by former members of Apple's MFi team. That's the team that designs and certifies accessories for Apple devices. You can't download that from your favorite model-sharing site. (For the record, Dawn would be MFi certified, but Apple doesn't support certification of 3D printed products. We're breaking new ground here.)
Finally, there is no slicer that supports G2/G3 arcs. Dawn prints with G2/G3 arcs. We wrote software to generate a toolpath that prints smooth curves instead of faceted ones.
Guys, I have the utmost respect for you. You're skeptical. I would be, too, if I were in your position. So many people have tried to jump on 3D printing as a bandwagon, and have put out tons of misinformation and bad product. Like that guy that scraped the files from that model-sharing site and posted them on eBay. He didn't add any value. He was just trying to profit from the work of others. We don't do things like that.
At Blit It, we create products that are demonstrably better. We certainly wouldn't expect you to pay for something if it didn't add value.