PlanetScale Offering $5 Databases

Sadly they don't mention that this will come to MySQL/vitess as well, it makes it look like Postgres is thing they care about now as a company.

This is not true. All of our Vitess operations assume 3 node clusters. It's a lot of work to change (we have hundreds of thousands of nodes). For Postgres it was a lot simpler to do based on the architecture. There are equally good things coming for Vitess it's just for a slightly different audience.