> How often do people change their computers

In enterprise environments? Quite often on a 3-4 year schedule. Same with servers. (Yes yes, not all companies)

But with iphones and partnership with telecos you can sell people all new iphone almost every year.

	▲	pjmlp 17 hours ago \| parent [-]
		Maybe on US, most Europeans rather use pre-pay or post-pay with mobile devices not being contract bound. Usually most people get their iPhones via contract bundles, and they don't get new phones until needed, because that resets the two-year contract agreement where it is not possible to terminate the contract without paying back the full costs to the provider.