Where is this at and when?
All week at Toys Rus. From Cheapy D's post: "Toys R Us is throwing in a $15 gift card with the purchase of any $59.99+ Xbox 360 or PS3 game...Get a free Skylanders Legendary Figure 3 pack with the purchase of the Skylanders Starter Kit."
I guess it won't qualify for the 3DS version, but since Skylanders is $70, if you get the 360 or ps3 version before tomorrow afternoon you'll get the free 3 figure pack and $15.00 gc.
Others are waiting for tomorrow afternoon, when you get $20gc, plus the 3 figure pack as well. It's a decent deal, if you're interested at all.
Finally, I would advise against getting the 3DS version, since you're getting a lot less game for the same price. You won't really be able to level up your characters like in the console versions. And the progression is nothing more than rushing from the beginning of a level which consists of nothing more than a bunch of platforms...this formula is repeated over and over again.