Old devices work just fine. I've upgraded my old iPhone XS last year to the latest and greatest 16 to see what changed (not much), the old one was still fast (in fact faster than a most upper-midrange Androids, its insane how much of a lead Apple has) and the battery was good. I considered selling it, but quickly had to realize it was worth almost nothing.
Also, when treated right, computers almost never break.
There's so much hand-me-down stuff, that are not much worse than the current stuff, that I think people even in the poorest countries can get an okay computer or smartphone (and most of them do).
Well the industries the most impacted by it are homelabbing/datacenters imo.
Like in current circumstances, its hard to get a homelab/datacenter so its better to postpone these plans for sometime
I agree with your statement overall but I feel like till the years that these ram shortages occur, there is a freeze of all companies providing vps's etc. ie. no new player can enter so I am a bit worried about those raising their prices as well honestly which will impact everyone of us as well for these few years in another form of AI tax