The Place and Play looks very much like what I am looking for, but indeed, the prices are not exactly consumer-level.

I really wonder, whether there would not be more consumer interest in these devices, if there were actual offerings. What about offering the 13" display in a plastic housing with a software more crafted to the consumer/hobbyist? Perhaps powered and controlled by USB-C or optimized for the Raspberry Pi. How low could the prices go, especially with larger volumes?

Of course, it could be just me, and there is not much interest in the wider audience.