I just finished a side project where I was using a managed postgres instances. I originally was going to use gcp because that's where my application's hosted. However, after starting a postgres instances and it idling for a couple weeks I saw that it was going to cost me $30 a month... just to sit there. I ended up going with a different vendor for managed SQL. After playing with that for some time, I was just thinking of hosting my db on my own hardware because I still don't like the price point.

I can appreciate having flat rate plans because you know exactly what you're going to pay. Especially for something like side projects.

I might seriously consider this for my projects.