EDIT!!! COSTCO 700.00 NOW 6S INCLUDED
iPhone 11 on us (activation required) or up to 700 dollars off XS / XS Max / 11 Pro / 11 Pro Max. device trade in required 7 or above.
not sure if Costco will match this, but it is a better than the one they had before.
iPhone "On Us"
Starting this Friday, new and existing T-Mobile customers can get iPhone 11 or iPhone XR "on us" or up to $700 off iPhone XS, iPhone XS Max, iPhone 11 Pro or iPhone 11 Pro Max with monthly bill credits when they activate a new voice line on a qualifying rate plan and trade in a qualifying iPhone. And, shoppers with more than one iPhone fan on their list, rejoice…T-Mobile customers can score up to FOUR iPhone models "on us" with this deal!