Here is one for $9 http://www.ebay.com/itm/1430mAh-Internal-Replacement-3-7V-Li...
Also updated it to iOS 8 GM and boy was that a mistake. Everything is slow, lot's of bugs.
Or you have a kid. I don't know...
Once I moved away from the expensive plans with "free" phones, it made me value and appreciate the major investment that a pocket computer is much more than I had before. And I'm saving lots of money — I recoup the cost of the (used) devices within 12-16 months, with every month thereafter being a bonus ~60 USD (for two iPhones). The $800-1200 outlay for two replacement phones is a very nice motivator to stretch them as far as we can, too.
Perhaps it's not a sustainable business model, though.
To you, yes. I suspect you have a lot more money than others do.
- same size screen as iphone 5 & 5s
- really good battery life (STOP MAKING IT THINNER AND MAKE IT LAST LONGER!)
- some killer feature that justifies the ludicrous amount of money I will spend on a phone.