Best place to sell iPhone 4? - 1

I have a broken iPhone 4 16GB on AT&T and it has a scratched up, but not cracked screen and will not charge unless its dead and I want to find the best offers online.

It's pretty messed up… No one will buy it unless they are a collector looking for parts. Sellit on eBay for about $20-30

EBay

Gazelle, ebay, amazon

Craigslist $50-$75