http://www.ilounge.com/index.php/articles/comments/apples-ip...
Another important note is this battery replacement cost only cover the iPhone6 and up. That's only the 2015 release. That's still lubricious. If we had devices as powerful as today's cellphones that cost $500+ in the early-90s, losing support after 2~3 years would be lubricious.
In 2012 I remember seeing someone with the first generation iPhone EDGE (pre-3G). That's right; the thing was like 6? 7 years old? He really only used it on Wi-Fi. EDGE data was painful, but it was still his primary/only phone for another year.
The throwaway economy saddens me, and this move doesn't really do enough to prevent the continuing pileup of e-waste being shipped on boats to China and Africa.