You are missing out if you have upgrade Sprint phone to the latest models. Now with even faster 4G network, you can download songs and watch online videos with virtually no interruption. Many of the Sprint phone upgrade deals offer you discount so great that you don’t even need to pay for the phone upfront. That’s the benefit of being a loyal Sprint customer. You can get more out of it when you upgrade Sprint phone every year or every two years. Especially when they are offering freebies like bonus accessories and no Sprint free activation promo code. That way you can save even more money on something that you use everyday. Sometime it makes you wonder - are all these Sprint upgrade phones really brand new and free? How can they make money if they keep giving you free stuff? Hey pull out a calculator and multiple your monthly fee by the number of months you have been with Sprint. Now you know why they are so nice to you If you like the service and phone, stick with them. Otherwise, switch carriers and keep your number is easy too.