I’m sure the commenter meant well. You said “In Europe, a 40-cell braille display starts a 6k.” Which to me means that the most low quality, cheapest device starts at 6k.

Now i learn from you that that low quality device is so bad that you consider it a separate product class in itself. Can you tell us more what does it lack? In other words what features are you looking for when you are looking for a 40-cell brail display? (What is the minimum quality for it to be a “car” in your analogy?)

This is a fascinating potential wedge for an open-source initiative. Could you please elaborate as to what makes a device highly usable and of good quality, vs cheap and unpleasant to use?

I’ve long thought that open source would make a lot of sense for assistive devices, and that it has the potential to change incentives within the cartel of assistive device manufacturing.

This is specifically like someone that has never seen or used a car or bicycle asking about why a bicycle wouldn't work for someone complaining about car prices, which I think is a pretty reasonable question!