Good point; I did some googling and I could find this CPU for sale at €32 apiece (it said &#x27;refurbished&#x27;, possibly reclaimed from old servers?), so if the intent is to build a cheap but performant server, the second-hand market might be worth considering before trying to build a raspberry pi cluster.<p>Actually come to think of it, CPUs from five years ago are not bad; I can see a future in a secondhand CPU market, given how CPU&#x27;s don&#x27;t really break from usage (normally).