In addition to the point about performance Sam made, PlanetScale's Vitess (MySQL) offers out-of-the-box horizontal scalability, which means we can maintain extremely good performance as your dataset and QPS grows to a massive scale: https://planetscale.com/case-studies/cash-app. We will be bringing the same capability to Postgres later on.

Our uptime and reliability is also higher than what you might find elsewhere. It's not uncommon for companies paying lots of money to operate elsewhere to migrate to PlanetScale for that reason.

We're a serious database for serious businesses. If a business can't afford to spend $39/mo to try PlanetScale, they may be happier operating elsewhere until their business grows to a point where they are running into scaling and performance limits and can afford (or badly need, depending on the severity of those limits) to try us out.