For example, I only buy/use old high-end (for their day) business class laptops and put linux on them. They work for everything I need to write and surf.
I also bought an iPhone that was already a few years old and plan to keep it until it stops getting security updates from Apple. I also moved from Android to Apple not because I like iPhones better (I don’t, really), but because the years of security updates (versus maybe one or two, on Android) matters to me.
I have never paid full price for an Apple product. I’ve had 3 macbook pros and 5 iphones, all from work. Once I get a tech refresh for a new device, I hand the old one down to my wife. I pay 30% of the iphone price because my employer pays for the plan, and it’s unlocked after 3 months.
A somewhat wealthy relative was throwing out “junk” and giving away anything you’d be interested in. I found two 4TB external HDDs that were used for their home cctv, and an older “defective” magic mouse that ran on batteries. I cleaned the battery contacts and it worked again.