where can i get God of war origins cheapest

I was holding off on getting it because i had originally thought about getting them for my vita, then realized it would be twice the amount as the ps3 disc version, plus i get trophies on the ps3. anyways, where is it cheapest/best deal?

ebay

I have the code from the GOW saga. PM me if you're interested.

[quote name='bigb423']I was holding off on getting it because i had originally thought about getting them for my vita, then realized it would be twice the amount as the ps3 disc version, plus i get trophies on the ps3. anyways, where is it cheapest/best deal?[/QUOTE]
I have a god of war origins voucher from purchasing the god of war saga collection which I won't be using. I'm willing to trade it for a $10 amazon GC, PM me if you like.