Just visited local Bay Area Costco and saw deal in T-Mobile Section for Samsung Galaxy S7 Or S7 Edge (Silver or Black) for $384 Buy Now Price.
Valid from 08/01 until 08/31 In-Store Only
Also they will give their usual gift with purchase – car charger, wireless charger or similar (depends on location).
I wanted to take photo but my S6 died
https://www.costco.com/cell-phones.html