The problem is that people and companies are still not okay with the idea of paying for R&D of open source, especially when it is not a direct investment - i.e, they pay for FOSS only when it is going to make or save them money elsewhere.

Open source consumer electronics does neither. It is at best a hobby and a very expensive one at that. Take a look at /r/mechanical keyboards or /r/headphones and you will see.

But I am with you. I would love to work on a drop.com equivalent that would focus only on curating and aggregating open source projects focused on consumer electronics.