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Am I reading https://instances.vantage.sh/rds/?min_vcpus=4&cost_duration=... wrong. It seams you can get that as a db.t4g.xlarge for ~$188/month.

Still more than 2x the cost, but not nearly $760

Yeah, tack on another $115 or so for the 1TB of storage. And as a sibling comment mentions, on-demand pricing means it isn't really an apples-to-apples comparison. In almost every case other than a hobby project it feels like the convenience of RDS vastly outweighs the savings of ~$250 you'd get by self-hosting.

for ~$188/month.

Note that this is still the on-demand price.

Although it's still not Apple to Apple, no one (sane) would useRDS 24x7 without RI. That probably brings you down another 50 bucks or so.

$188 without storage and bandwidth.

The t4g instances are also burstable so running your database with 4 cores under load would either get you throttled or produce more charges.

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