From now until 11/9, you can Trade in your old iPad (from 3 up) and get up to a $350 Gift Card at Best Buy, which you can use towards the purchase of the new iPad Air. This means you could potentially get an iPad Air for only $149. This deal can only be redeemed in-store. This won't work for the original iPad or the iPad 2—only a working iPad (3rd generation), iPad with Retina display, or iPad mini can be traded in. The trade-in value may vary, depending on the condition of the iPad. Sales tax is charged in most states.