Today (2/9/18) only get a free $300 Best Buy gift card when you activate a 64 GB iPhone 8 on Sprint with 24 month installment plan. This is slightly better than the $250 gift card that is being offered on all iPhone 7 or newer this whole week (2/4-2/10/18).
Details here:
https://www.bestbuy.com/site/ipho…48166722