@otfrom The buildings themselves should last as long as any other commercial building. The data centre I had things racked in in London was by no means new when I used it and is still in business.

Commodity hardware gets replaced on 3-5 year cycles typically. Specialist hardware either ends up as ewaste or someone figures out how to reuse it. A good example are the BC-250 boards that were used for crypto mining and are now being turned into cheap gaming PCs since they used PS5 APUs.

@otfrom I'd assume that folk from round these parts then start arguing about which flavour of Linux will run best on it.