How much would you pay for an iPhone 5 that dies quite a lot and the on and of button doesn't work?

How much would you pay for an iPhone 5 that dies quite a lot and the on and of button doesn't work?

Added (1). would you pay £80-£100

Nothing

Zilch

$150 - $170

$5 bucks tops. But only if I was looking for parts for a project or a target for an outdoor firing range.