Given these cameras are:
* Fairly easy to make, a la github instructions
* Can command a _very steep_ margin per sale, compared to an app
* Offer (imo) most of the product value by being something physical/tangible you can show to your friends
* Polaroid cameras are surprisingly popular https://www.wsj.com/articles/fujifilm-zooms-in-on-instaxs-re...
I think I'd have to disagree here!