Was at my local Costco and saw a deal on the IPhone 7/7 Plus. The Cellular Kiosk has the phones for $499 and $599 respectively. This is cheaper than the new marked down price by about $50 dollars. They have have a trade in promo going.
Trade in an IPhone 6 or better and get $300 back via Giftcard rather than the monthly credit for 24 months. Thought this was the best deal, especially since you get the full promo within 8 to 10 weeks and not stuck with the carrier for 2 years and the cost of the phone is also cheaper as well.
Promo ends the September 27th
$599 + Tax - 300 GC After Trade-In = $342 after 7% Tax for plus
$499 + Tax - 300 GC After Trade-In = $235