It's lucky that my dad's supplier is sensible about these things, my family has I think 5 refurb Fujitsu laptops at €50 and €70 for the last one. Perfectly fine machines for study, browsing 3D-print terminals, vehicle diagnostics and such daily usage.
The plateau of processing power and modern energy efficiency means far older machines are viable users for years and years.
It is nice to know it will also answer my time traveling needs.