> The more keen eyed among you will have noticed the huge cost associated with data transfer over the internet - its as much as the servers! We're building Prosopo to be resilient to outages, such as the recent massive AWS outage, so we use many different cloud providers.

I mean, you're connecting to your primary database potentially on another continent? I imagine your costs will be high, but even worse, your performance will be abysmal.

> When you migrate to a self-hosted solution, you're taking on more responsibility for managing your database. You need to make sure it is secure, backed up, monitored, and can be recreated in case of failure or the need for extra servers arises.

> ...for a small amount of pain you can save a lot of money!

I wouldn't call any of that "a small amount of pain." To save $3,000/month you've now required yourself to become experts in a domain that maybe is out of your depth. So whatever cost saved is now tech debt and potentially having to hire someone else to manage your homemade solution for you.

However, I self-host, and applaud other self-hosters. But sometimes it really has to make business sense for your team.