Get the iPad Air 16GB for $478.99 plus free shipping at MacMall. This is currently the lowest price online for the iPad Air by $20, but we did see it last week for $29 lower, as well as some gift card deals. However, those deals have ended or are out of stock. Note: You have to sign up for a MacMall account to order this deal, but sign up is easy and free. They have it available in both space gray and silver. Sales tax is charged in most states.