Let the hive mind of Engadget get that for you.
"I own an iPhone 3G and I'm looking for a decent speaker / alarm clock for it. I am going to listen music in a mid-sized room, so I want nice quality speakers with solid bass. I also want to use it as an alarm clock, so it would be great if there is such a feature. The price can be low-mid to mid-high range. I was looking at the Klipsch iGroove SXT; it's powerful, slick and the reviews are good, but it doesn't have an alarm clock feature. It's no deal breaker if I can set it up from the iPhone, but I'm not sure. Thanks!"
They don't...the fundamental difference between the major carriers and the smaller ones is the coverage. If you want more coverage pay more. If you don't need it go with a smaller company. Should a "small" company like Kia be able to use Honda engine technology for free (or significantly reduced price) to try and even the playing field? C'mon, honda can sell their motors for what ever price they wan't, and the same should go for the wireless companies as well. Or should we just follow the Communist approach and have just one wireless company that can use everything, at a government controlled rate?
If you wan't coverage go with a big company...if you wan't to pay less go with a local...you can't have both.