[pojzon]

This only works to some scale. Startup from my previous contract reached the point where “using bigger instance” would be losing them money.

On the other hand, self built databases maintained by professionals were ALOT cheaper.

We are talking here about million of dollars bills only for databases per month.

Self hosted solution did cost around 300k per month.

This included precompiled kernel patches, tweaks to postgres engine etc.

Overall the investment of a year of work of dbadmins will probably return itself by ten times if not more.