To me, the value lies beyond the hardware, which is likely just off the shelf parts. The documentation looks really nice, and it’s extremely rare for a company

To me, the value lies beyond the hardware, which is likely just off the shelf parts. The documentation looks really nice, and it’s extremely rare for a company to provide any printed material with their hardware, other than the multi language safety card. Many will just provide a basic how-to support page to get you along your merry way, but this looks superb, and a great way to get people learning. I wouldn’t be surprised if the bulk of development costs lie in that book. The will also be providing firmware updates, patches and quality enhancements, which are likely to be much better than your open-source project in GitHub with a moderate client base.