The concept of a cheap new computer like an RPi for poor families is a 1st world solution that doesn't understand markets. Used computers are way more popular in countries where the price of new computers are out of reach.

It's a supply chain problem, n

This was over 10 years ago, and the original price was something like £35.

It was tiny, and the assumption was correct - most families had an HDMI capable TV and could afford the device and a usb keyboard.

A used PC still needs a desk and a monitor. This was far more accessible.