I have been tracking this for a while since I have an extra copy of the game
. The entire month of July it was set at $26.25 for credit but today it's
up to $33 (as of 9:03AM PST). This is similar to post by Strykertlc on 6/23
. The bottom info below is taken from his post.
"If you're even considering it, just click "submit" to lock in the price for
7 days because price can change at any point. Worse thing is you don't send
it within 7 days and lose the high trade-in value." -Strykertlc
