I want to upgrade my Pis to something more reliable and not SD-card based and refurbished thinclients/SFF workstations seem to be a viable route. Does anyone have a cheap source for used hardware like this in Germany? I feel like the usual esm-computer, green-IT etc. are a bit overpriced.
Piospartslab on Ebay. Before buying, try to make an offer, offen they approve them and you can get very good bargains! For a Pi upgrade those Fujitsu Futro (S720/S920) are very good, I’ve started using them in the lasts months and I love them.