Here's another comparison. Sprint doesn't offer the iPhone 3GS, but assume it did for $0. Their unlimited service plan is $99/month. So to own the phone for 2 y

Here's another comparison. Sprint doesn't offer the iPhone 3GS, but assume it did for $0. Their unlimited service plan is $99/month. So to own the phone for 2 years would be about $2400. In comparison, let's say you get a Samsung Android phone from Boost Mobile (which uses Sprint's network). That costs $150. But Boost's monthly unlimited plan is $55/month. So the plan cost over 2 years would be $1320. Add the phone and you're at $1470. So going the Android route on the same network would be $930 cheaper.