How small? How many drives? I bought several used Lenovo P330 E2276G for my servers.
The Intel CPU has great low power GPU for video encoding/decoding for video streaming.
The Xeon ECC ram gives long term reliability. It’s important if you leave your PC on 24/7 for years at a time.
Used servers/workstations are likely more reliable than new consumer.
They were very likely kept temperature controlled, have ECC, and are actually known working instead of something like Asus. If I remember correctly, PC mortality is very high the first 6 months, goes down to near zero for 5 years, then starts going back up.
Replace the SSD/hard drive and you are good. You might not even have to do that. I checked the stats on the SSD that came with my used Lenovo workstation and it had like 20 hours on it.