https://gizmodo.com/man-they-dont-make-gaming-laptops-like-they-used-to-2000482764
A person might have some clothes that are 5-10 years old, but kept them in good condition by not wearing them that much. A person might have an extra TV that's closer to a decade old than 5 years old, but it still does what it was meant to do. A 10 year old car can still work well, provided that its been properly maintained. A 5 year old smartphone or a laptop can still work, but it will seem a little old. However, some people might not only like to have a car that's more than half a decade old, but a laptop as well.
https://www.cnet.com/reviews/alienware-area-51m-review Of course the older the tech, the tougher it will be to get new parts.
https://www.notebookcheck.net/Alienware-Area-51-Series.10325.0.html
https://www.dell.com/en-us/blog/alienware-area-51-intel-first-18-core-chip/
https://www.ultrabookreview.com/46377-best-refurbished-used-old-laptops/
https://www.laptopmag.com/features/9-best-laptops-of-the-decade
Of course some people want to have certain tech that's 10, 20 or even 40 years old and it might not always simply be for nostalgia.