I'm a Linux guy and have on many points of my life have a personal server. So I like the idea of having something always on, but I’m not sure the maintenance is worth it when most things can just run on my laptop.
That said, I tend to do things myself and only later realize I could have automated or delegated them, so I may have a blind spot here.
If you have a cheap VPS or mini PC, what actually ended up being useful long-term? Anything that saved enough time or replaced enough subscriptions to justify keeping it around?
After getting into home assistant and setting up a proper home server I no longer saw a need to keep the VPS running. With cloudflare reverse proxy I can still host personal websites, but from inside my home network. Since getting the home server I'm discovering a lot of neat self hosted options and use it a lot more than I ever did the VPS. If nothing else, hosting your own stuff provides a great place to learn and explore. It doesn't have to be always on/on the internet for that to be true though.
I installed Plex but ended up not using it, so I removed it.
* https://www.langturbo.com
The price was low enough that I left it running.
Pretty low maintenance overall - I can go months without even thinking about it.
2. Rendezvous server ("supernode")
If you don't have a use maybe you do not have a use?