Just because of the scam you mention. EVERYONE complains about their bullshit low quality home printer with super expensive ink. Yet nothing is being done about it.
Printers are complex mechanical devices. And people want them cheap as possible. I don't think there is big enough market for open source printer that would cost x-times more.
Someone is likely making good industrial quality ones, now finding those and selling them on that point is something that should be solved...
