Best price I could get for an iPhone 4 and where?

IPhone 4 16GB (Black) Unlocked
2 Years old
Comes with all boxes, user guide, apple stickers, brand new apple earphones, brand new iPhone to USB cable and brand new wall adapter. What's the best price I could get for this phone? It's all in excellent condition - has had case and screen protector on in its whole life. And where?

EBay

Ill give you 150

Just got £151 for mine on the O2 site.

http://www.o2recycle.co.uk/

Cost: 20, 000, 000 Rial
Location: Iran