For the last few years it has been in < 5€ / month territory for me.
This is due to many AAA games not doing it for me in the first place and others being broken and unccompleted at release. And then I just wait a few years and pick them up in a sale - and it works out great every time.
Case and point - Cyberpunk. I still haven’t bought it but I hear its actually good now. I’ll wait a bit still until they CDPR really finished it.