[quote name='SevereTireDamage']Just following up logically, you would need to spend over $100 in used games at EB to make this card worth it, since you're already spending $10 for the card itself...[/quote]
Not quite. Remember you also get the GMR subscription, plus an extra 10% trade-in credit. They also usually give you an extra percentage off during specials, as I posted above. With the buy 2/3/4 sale, you could make the card pay for itself with $30-$40 in used games. And that's dollar value, not dollars spent.
Last time I was in EB, I spent about $65 and walked out with 8 or 9 games. Savings was $7 and change.
However, if you have no real interest in the mag, never trade in games, and don't like to buy used, the card is worthless.