I had a old, cheap, used Dell R710 that I bought used in ~2016 until 2025. It only took a few months of running a new, much more efficient server to pay for its self.

My EliteDesk G4 idles at 11W with 4 drives, so it’s not too bad. I really wish we could get something cooler, but it does the job beautifully. I see 150+ for the Dell, ouch.