This deal has ended.
At BestBuy.com when you activate a new cell phone with 2-year agreement for your registered phone number, you can get a $50 Gift Card. This makes some phones virtually free. For example, this you can get this LG G2 4G LTE 32GB Phone for $49.99 shipped, which nets out to $0 after you get the gift card. This works for plans on Verizon Wireless, AT&T and Sprint. See the first link for more details. Sales tax is charged in most states.