Earlier quoted context omitted.
In practice I've been cycling phones about every two years. I just checked and all resources I've seen puts the typical lifespan around this. I don't know what the distribution looks like though. I bet the distribution curves change if you bucket the pricing points. 3 years is ok. After you buy it, they've made 100% of the money they're going to make in the transaction. They need money to come in to support such an e…
There is great research being done by Marina Proske on why and when smartphone are being replaced. Recommend this talk (unfortunately in German) https://youtu.be/Hen7by8oo7g
The two or whatever year cycle certainly shouldn't be forced by design.
I'm personally comfortable with it because I'm sold on newer and better features and my current phone is starting to get dog eared by then.
Probably the "right" thing to do would be to have a new "durable" tier for those who value lifespan and do not feel tempted by increases in hardware capabilities.
I also buy mid range. I can imagine being sour if I'm buying the high end over $1000 devices and see the same cycle