lxsw20:Why do they need a current year iPhone? The SE is perfect for this scenario. Throw away a phone after 1 year? Talk about unsustainable.
I think the point was that to get a current version phone, the purchase cost proposition with an Android is far superior, by a magnitude that you could buy the latest phone every year.
Apple of course have a better resale value so that's also worth considering if looking at whole of life value.
Buying the latest model, assuming you will be keeping the device for a few years, is usually recommended as it will have a longer life span. Buying an older, near obsolete model means it's more likely to need upgrading sooner. But it depends on the end user, and what they use their device for.