[PittleyDunkin]

Databases seem to grow much slower than other assets, so maybe this price advantage just won't be worth the vendor lockin. Hell my current extremely valuable postgres database worth literally millions of dollars is about thirteen gigs and could be hosted on my mac mini if I really wanted to. Still, the managed hosting is worth it—only without vendor lockin!

[ethbr1]

DBMS (and DBAs) tend to be more conservative, so extensions and implementations diverge much more slowly than, say, js.

There's also the incoming business argument in favor of not diverging too far from baseline.

If I'm AWS/Azure/GCP trying to attract a customer from a competitor service, 'completely rewrite your app to be able to use us' isn't a compelling pitch.

MS SQL Server and Oracle have different incentives, but the cloud services would probably prefer portability and decreased maintenance / fork support load.