Various merchants via eBay take up to 92% off a selection of new, used, and refurbished iPhones, iPads, MacBooks, and more. (Prices are as marked.) Plus, most orders bag free shipping. A couple of best bets:
BuyFromBrooklyn via eBay offers the used Apple iPhone SE 16GB for AT&T in Rose Gold, model no. MLXJ2LL/A, for $329.99 with free shipping. That's $66 under our April mention of a new unlocked phone and $69 less than the lowest total price we could find for a new model.
These phones are in mint condition with no scratches or marks. No warranty information is provided.