I dunno if you've got the math right here. A thousand units is enough to pay one junior engineer on an ongoing basis (assuming tier 1 or tier 2 US city). You st

I dunno if you've got the math right here. A thousand units is enough to pay one junior engineer on an ongoing basis (assuming tier 1 or tier 2 US city). You still have to pay marketing and other costs. AFAICT you probably need a minimum of 3k subscriptions to break even. If they can't break even then their business isn't worth much, even if it has a couple thousand subscribers. No shot they are selling millions of these. But tens of thousands seems within the realm of possibility, and it would be a very profitable small enterprise if they managed it without a huge marketing budget.