I recently found out that a “client” of mine (not really a client, just some people I did a favor to) had a forgotten machine with more than 3 years of uptime on Hetzner. That’s quite the achievement!
Edit: I might add, serving a Wordpress website, still working, unhacked despite minimal configuration. We only found out because MySQL crashed and the machine had to be rebooted.
It ain’t cheap but Martin got wares if you’ve got coin…