Hey, author here. I decided on the 16 since its support lifetime started this year. If I'd gotten the SE (which I seriously considered since it has a more appealing form factor and touchID) I would only have a 4 year support lifetime as opposed to the full 6.
On the other hand the SE3 is 54% of the price of the 16 (assuming base models of both), so long term it could be cheaper to go with the SE3 even though you would have replace it sooner.
