On November 9, Sam’s Club is offering up to $400 back in the form of a Sam’s Club gift card with an iPhone purchase. They are also offering an additional $250 gift card with select trade in. Trade in is not required to get the $400 gift card.
Small print links to http://samsclub.com/mobileoffers for full details, but that page is still showing the old offer (in effect through 11/8) at this time. Last year, Sam’s offered a $300 gift card, so this reflects a $100 increase over last year.
In the past, Costco has matched this deal on the morning of the sale, but not announced the match in advance.
https://www.samsclub.co