Yeah, I did too. Right now they're giving 30% extra towards trade in's, and the card gave me an extra 10% too.
I got like $30.40 for it. (the 30% deal runs till June 6th.)
I also traded in TW09 and some old COD copies I had.
Im going to use the monies towards Red Dead & Tiger Woods 2011.
The only way to get my baseball fix now is to play the Show at my cousins. (he owns a PS3)
No baseball for us 360 gamers another year.... *sigh*