Size and portability.? Ease of use?

Curious, how does a pi replace Chromecast functionality?

Very few reasons for people with technical ability, which the Fediverse overrepresents. It’s easy to get the idea that anyone can pick up something like a Pi and install and configure an OS image on it. It seems simple to us, but 95% of people will not/cannot do this. They have better things to do than learn IT skills.