Costco warranty is great but it takes them awhile to get the new models...

If you're going to buy a phone for Sprint, buy it from Costco. When I bought mine, they had a lifetime return policy which meant that whenever I wanted to upgrade my phone I could use it for credit towards new phone. For example, you buy a 100 dollar phone and a couple months later you want a 200 dollar phone. You return the original and pay 100 to get the new one! You just have to keep your receipt or else you get what the phone currently sells for. Anyways, double check the info with Costco because things might have changed.