I wonder if when people move to 2 year or 3 year cycles with phones
Wait, what? People change phone more often than once per two years. Most people I know, keep them for about two years or longer.
I basically live on the hand-me-down phones from my wife. Why? Because she gets the "everything included" plan which comes with an iPhone (and when we renew each two year, we get a new iPhone). She gets the "everything included" plan because that way she doesn't have to think about anything when using it (Am I on wireless? How much volume do I still have this month? Roaming? Those kind of questions that are hard for non-tech users).
When she gets a new phone, I get her two year old phone and continue to use that on my cheap-ass-phoneless-plan. At this point, I am using a iPhone 5 (just the number) and it works fine. I'm even pondering continuing on using it until Apple stops support, because I'm not keen on getting the bigger iPhone 6 (just the number) my wife currently uses. Refresh is in March next year.
Phones already have a long longevity... I do admit, I went to Mr Minit to get a new battery for the iPhone 5. Cost me something like 50€ and that was worth it.
There's a lot of useful PDP-11 programs, too; but most people can't run them, either.
Really? You might even be able to run them in your browser...
A transistor protected by a fast-acting fuse will protect the fuse by blowing first.