Re: Aliens: Colonial Marines.
Trade in value right now is $20 without any of the stackable bonuses.
So 25% bonus brings it to $25 then 10% more for trading in two games brings it to $27.50 and 10% for PUR brings it to $30.25 credit towards Bioshock.
Correct me if I'm wrong. I don't trade in games but I am on CAG a lot.
The only thing that might not work is doing the preorder bonus with the tier trade bonus. But very YMMV
As long as there's a Triforce, there will be a Zelda;
as long as there's a prosperous kingdom, there will be an evil bent on destroying it;
and as long as there's an oppressive force threatening Hyrule, there will be a boy...
in a green tunic, silver shield, and magic blade to stand against it.