Should I just rewrite and host stuff like S3, RDS, ECS, Route53, Cloudwatch, Cloudfront, Lambda, etc. just because I want a spending limit?
Your argument makes no sense at all. You may feel like using production-ready hosted cloud services and still want a spending limit. Renting a single VPS might not solve all your issues.
Some people just want to use aws because it is convenient. I could just set up a vps with rabbitmq, nexus and postgres, setup cron to post systemd status and use the provider's cdn offering to accomplish most of that. Probably doesn't suit your requirements.
The entire point of AWS is to avoid downtime at the expense of convenience and cash. There's no reason to use it if you're willing to sacrifice its reason for existence.
