Thinking of switching... I've been on AT&T for the better part o the last 10 years. I've never had a cell phone with any other carrier but because of AT&T's rising costs, I've been thinking of switching. Verizon seems to be just as costly, so I'm focusing on Sprint for now. Can some of you sprint users give me feedback on your service and how happy or unhappy you are with them. I'm looking for good and bad, so I get both sides of the story. Thanks to all who reply!