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Framework proved repairable laptops can work, but almost nobody is willing to buy one
(www.xda-developers.com)
This is a most excellent place for technology news and articles.
The reason used ThinkPads are so easy to find in good condition at bargain prices is because management in corporations just lease them for 3-5 years and continuously replace them even if they don't actually need to do so. They probably don't even know that they can last decades but accounting wants a lease, so they get a lease.
There isn't a similar "infinite supply" of used frameworks that constantly drives prices down